./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/systemc/toy.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/systemc/toy.cil.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 1ba07ae5f9ba9742e473cf2ed151649cad165d7c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 20:11:01,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:11:01,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:11:01,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:11:01,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:11:01,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:11:01,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:11:01,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:11:01,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:11:01,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:11:01,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:11:01,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:11:01,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:11:01,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:11:01,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:11:01,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:11:01,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:11:01,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:11:01,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:11:01,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:11:01,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:11:01,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:11:01,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:11:01,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:11:01,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:11:01,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:11:01,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:11:01,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:11:01,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:11:01,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:11:01,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:11:01,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:11:01,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:11:01,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:11:01,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:11:01,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:11:01,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:11:01,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:11:01,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:11:01,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:11:01,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:11:01,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:11:01,809 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:11:01,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:11:01,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:11:01,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:11:01,812 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:11:01,812 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:11:01,812 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:11:01,812 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:11:01,813 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:11:01,813 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:11:01,814 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:11:01,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:11:01,814 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:11:01,815 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:11:01,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:11:01,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:11:01,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:11:01,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:11:01,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:11:01,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:11:01,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:11:01,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:11:01,818 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:11:01,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:11:01,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:11:01,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:11:01,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:11:01,819 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:11:01,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:11:01,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:11:01,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:11:01,821 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:11:01,822 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:11:01,823 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 -> 1ba07ae5f9ba9742e473cf2ed151649cad165d7c [2020-10-19 20:11:02,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:11:02,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:11:02,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:11:02,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:11:02,138 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:11:02,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy.cil.c [2020-10-19 20:11:02,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95caf1764/faded8b7fc7240338eea31cca0955b25/FLAG5cd13ba32 [2020-10-19 20:11:02,689 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:11:02,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy.cil.c [2020-10-19 20:11:02,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95caf1764/faded8b7fc7240338eea31cca0955b25/FLAG5cd13ba32 [2020-10-19 20:11:03,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95caf1764/faded8b7fc7240338eea31cca0955b25 [2020-10-19 20:11:03,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:11:03,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:11:03,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:11:03,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:11:03,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:11:03,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a7074f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03, skipping insertion in model container [2020-10-19 20:11:03,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:11:03,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:11:03,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:11:03,560 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:11:03,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:11:03,687 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:11:03,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03 WrapperNode [2020-10-19 20:11:03,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:11:03,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:11:03,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:11:03,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:11:03,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:11:03,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:11:03,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:11:03,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:11:03,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... [2020-10-19 20:11:03,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:11:03,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:11:03,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:11:03,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:11:03,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 20:11:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:11:03,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:11:03,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:11:04,489 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:11:04,489 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-19 20:11:04,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:11:04 BoogieIcfgContainer [2020-10-19 20:11:04,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:11:04,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:11:04,494 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:11:04,499 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:11:04,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:11:04,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:11:03" (1/3) ... [2020-10-19 20:11:04,502 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21d4e196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:11:04, skipping insertion in model container [2020-10-19 20:11:04,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:11:04,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:11:03" (2/3) ... [2020-10-19 20:11:04,503 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21d4e196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:11:04, skipping insertion in model container [2020-10-19 20:11:04,503 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:11:04,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:11:04" (3/3) ... [2020-10-19 20:11:04,505 INFO L373 chiAutomizerObserver]: Analyzing ICFG toy.cil.c [2020-10-19 20:11:04,559 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:11:04,560 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:11:04,560 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:11:04,560 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:11:04,560 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:11:04,561 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:11:04,561 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:11:04,561 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:11:04,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2020-10-19 20:11:04,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 91 [2020-10-19 20:11:04,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:04,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:04,671 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, 1] [2020-10-19 20:11:04,671 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, 1, 1, 1, 1] [2020-10-19 20:11:04,671 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:11:04,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states. [2020-10-19 20:11:04,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 91 [2020-10-19 20:11:04,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:04,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:04,696 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, 1] [2020-10-19 20:11:04,696 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, 1, 1, 1, 1] [2020-10-19 20:11:04,705 INFO L794 eck$LassoCheckResult]: Stem: 97#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 12#L-1true havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 51#L400true assume !(1 == ~c_req_up~0); 36#L400-2true assume !(1 == ~wl_i~0);~wl_st~0 := 2; 53#L411-1true assume !(1 == ~c1_i~0);~c1_st~0 := 2; 73#L416-1true assume 1 == ~c2_i~0;~c2_st~0 := 0; 84#L421-1true assume !(1 == ~wb_i~0);~wb_st~0 := 2; 108#L426-1true assume !(1 == ~r_i~0);~r_st~0 := 2; 4#L431-1true assume !(0 == ~e_f~0); 26#L436-1true assume !(0 == ~e_g~0); 54#L441-1true assume !(0 == ~e_e~0); 75#L446-1true assume !(0 == ~e_c~0); 103#L451-1true assume !(0 == ~e_wl~0); 121#L456-1true assume !(1 == ~wl_pc~0); 74#L468true assume !(2 == ~wl_pc~0); 43#L469true assume !(1 == ~c1_pc~0); 93#L479true assume !(1 == ~c2_pc~0); 45#L488true assume !(1 == ~wb_pc~0); 14#L497true assume !(1 == ~e_c~0); 100#L506-1true assume !(1 == ~e_e~0); 118#L511-1true assume !(1 == ~e_f~0); 17#L516-1true assume !(1 == ~e_g~0); 46#L521-1true assume !(1 == ~e_c~0); 70#L526-1true assume !(1 == ~e_wl~0); 125#L668-1true [2020-10-19 20:11:04,706 INFO L796 eck$LassoCheckResult]: Loop: 125#L668-1true assume !false; 32#L538true start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 21#L373true assume !true; 52#L389true start_simulation_~kernel_st~0 := 2; 9#L544true assume !(1 == ~c_req_up~0); 119#L544-2true start_simulation_~kernel_st~0 := 3; 89#L556true assume 0 == ~e_f~0;~e_f~0 := 1; 92#L556-2true assume 0 == ~e_g~0;~e_g~0 := 1; 111#L561-1true assume 0 == ~e_e~0;~e_e~0 := 1; 11#L566-1true assume 0 == ~e_c~0;~e_c~0 := 1; 33#L571-1true assume 0 == ~e_wl~0;~e_wl~0 := 1; 60#L576-1true assume !(1 == ~wl_pc~0); 8#L588true assume !(2 == ~wl_pc~0); 88#L589true assume !(1 == ~c1_pc~0); 6#L599true assume !(1 == ~c2_pc~0); 105#L608true assume !(1 == ~wb_pc~0); 62#L617true assume !(1 == ~e_c~0); 28#L626-1true assume 1 == ~e_e~0;~e_e~0 := 2; 58#L631-1true assume 1 == ~e_f~0;~e_f~0 := 2; 81#L636-1true assume 1 == ~e_g~0;~e_g~0 := 2; 106#L641-1true assume 1 == ~e_c~0;~e_c~0 := 2; 127#L646-1true assume 1 == ~e_wl~0;~e_wl~0 := 2; 24#L651-1true assume 0 == ~wl_st~0; 125#L668-1true [2020-10-19 20:11:04,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:04,714 INFO L82 PathProgramCache]: Analyzing trace with hash -2133486251, now seen corresponding path program 1 times [2020-10-19 20:11:04,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:04,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155221553] [2020-10-19 20:11:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:04,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155221553] [2020-10-19 20:11:04,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:04,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:04,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559664594] [2020-10-19 20:11:04,921 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:04,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:04,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1424502649, now seen corresponding path program 1 times [2020-10-19 20:11:04,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:04,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598266549] [2020-10-19 20:11:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:04,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:04,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598266549] [2020-10-19 20:11:04,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:04,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 20:11:04,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220403405] [2020-10-19 20:11:04,939 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:11:04,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:04,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 20:11:04,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 20:11:04,959 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2020-10-19 20:11:04,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:04,976 INFO L93 Difference]: Finished difference Result 125 states and 219 transitions. [2020-10-19 20:11:04,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 20:11:04,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 219 transitions. [2020-10-19 20:11:04,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:04,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 120 states and 214 transitions. [2020-10-19 20:11:04,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-10-19 20:11:04,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-10-19 20:11:04,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 214 transitions. [2020-10-19 20:11:04,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:11:04,997 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-19 20:11:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 214 transitions. [2020-10-19 20:11:05,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-19 20:11:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-19 20:11:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-10-19 20:11:05,035 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-19 20:11:05,036 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-19 20:11:05,036 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:11:05,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 214 transitions. [2020-10-19 20:11:05,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:05,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:05,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:05,041 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, 1] [2020-10-19 20:11:05,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:05,041 INFO L794 eck$LassoCheckResult]: Stem: 372#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 284#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 285#L400 assume !(1 == ~c_req_up~0); 320#L400-2 assume !(1 == ~wl_i~0);~wl_st~0 := 2; 321#L411-1 assume !(1 == ~c1_i~0);~c1_st~0 := 2; 340#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 355#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 364#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 263#L431-1 assume !(0 == ~e_f~0); 264#L436-1 assume !(0 == ~e_g~0); 307#L441-1 assume !(0 == ~e_e~0); 341#L446-1 assume !(0 == ~e_c~0); 358#L451-1 assume !(0 == ~e_wl~0); 375#L456-1 assume !(1 == ~wl_pc~0); 356#L468 assume !(2 == ~wl_pc~0); 330#L469 assume !(1 == ~c1_pc~0); 329#L479 assume !(1 == ~c2_pc~0); 331#L488 assume !(1 == ~wb_pc~0); 288#L497 assume !(1 == ~e_c~0); 289#L506-1 assume !(1 == ~e_e~0); 373#L511-1 assume !(1 == ~e_f~0); 290#L516-1 assume !(1 == ~e_g~0); 291#L521-1 assume !(1 == ~e_c~0); 333#L526-1 assume !(1 == ~e_wl~0); 261#L668-1 [2020-10-19 20:11:05,042 INFO L796 eck$LassoCheckResult]: Loop: 261#L668-1 assume !false; 316#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 298#L373 assume !false; 299#L291 assume !(0 == ~wl_st~0); 342#L295 assume !(0 == ~c1_st~0); 343#L298 assume !(0 == ~c2_st~0); 338#L301 assume !(0 == ~wb_st~0); 311#L304 assume !(0 == ~r_st~0); 313#L389 start_simulation_~kernel_st~0 := 2; 277#L544 assume !(1 == ~c_req_up~0); 278#L544-2 start_simulation_~kernel_st~0 := 3; 367#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 368#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 370#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 282#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 283#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 317#L576-1 assume !(1 == ~wl_pc~0); 274#L588 assume !(2 == ~wl_pc~0); 275#L589 assume !(1 == ~c1_pc~0); 268#L599 assume !(1 == ~c2_pc~0); 270#L608 assume !(1 == ~wb_pc~0); 302#L617 assume !(1 == ~e_c~0); 308#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 309#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 346#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 363#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 376#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 303#L651-1 assume 0 == ~wl_st~0; 261#L668-1 [2020-10-19 20:11:05,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,042 INFO L82 PathProgramCache]: Analyzing trace with hash -2133486251, now seen corresponding path program 2 times [2020-10-19 20:11:05,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223961514] [2020-10-19 20:11:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223961514] [2020-10-19 20:11:05,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:05,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586011202] [2020-10-19 20:11:05,105 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:05,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 1 times [2020-10-19 20:11:05,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544253535] [2020-10-19 20:11:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544253535] [2020-10-19 20:11:05,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:05,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153864935] [2020-10-19 20:11:05,142 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:11:05,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:05,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:05,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:05,143 INFO L87 Difference]: Start difference. First operand 120 states and 214 transitions. cyclomatic complexity: 95 Second operand 3 states. [2020-10-19 20:11:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:05,192 INFO L93 Difference]: Finished difference Result 120 states and 213 transitions. [2020-10-19 20:11:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:05,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 213 transitions. [2020-10-19 20:11:05,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:05,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 213 transitions. [2020-10-19 20:11:05,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-10-19 20:11:05,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-10-19 20:11:05,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 213 transitions. [2020-10-19 20:11:05,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:11:05,207 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2020-10-19 20:11:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 213 transitions. [2020-10-19 20:11:05,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-19 20:11:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-19 20:11:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 213 transitions. [2020-10-19 20:11:05,224 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2020-10-19 20:11:05,225 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 213 transitions. [2020-10-19 20:11:05,225 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:11:05,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 213 transitions. [2020-10-19 20:11:05,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:05,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:05,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:05,231 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, 1] [2020-10-19 20:11:05,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:05,232 INFO L794 eck$LassoCheckResult]: Stem: 619#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 531#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 532#L400 assume !(1 == ~c_req_up~0); 567#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 568#L411-1 assume !(1 == ~c1_i~0);~c1_st~0 := 2; 587#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 602#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 611#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 510#L431-1 assume !(0 == ~e_f~0); 511#L436-1 assume !(0 == ~e_g~0); 554#L441-1 assume !(0 == ~e_e~0); 588#L446-1 assume !(0 == ~e_c~0); 605#L451-1 assume !(0 == ~e_wl~0); 622#L456-1 assume !(1 == ~wl_pc~0); 603#L468 assume !(2 == ~wl_pc~0); 577#L469 assume !(1 == ~c1_pc~0); 576#L479 assume !(1 == ~c2_pc~0); 578#L488 assume !(1 == ~wb_pc~0); 535#L497 assume !(1 == ~e_c~0); 536#L506-1 assume !(1 == ~e_e~0); 620#L511-1 assume !(1 == ~e_f~0); 537#L516-1 assume !(1 == ~e_g~0); 538#L521-1 assume !(1 == ~e_c~0); 580#L526-1 assume !(1 == ~e_wl~0); 508#L668-1 [2020-10-19 20:11:05,233 INFO L796 eck$LassoCheckResult]: Loop: 508#L668-1 assume !false; 563#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 545#L373 assume !false; 546#L291 assume !(0 == ~wl_st~0); 589#L295 assume !(0 == ~c1_st~0); 590#L298 assume !(0 == ~c2_st~0); 585#L301 assume !(0 == ~wb_st~0); 558#L304 assume !(0 == ~r_st~0); 560#L389 start_simulation_~kernel_st~0 := 2; 524#L544 assume !(1 == ~c_req_up~0); 525#L544-2 start_simulation_~kernel_st~0 := 3; 614#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 615#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 617#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 529#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 530#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 564#L576-1 assume !(1 == ~wl_pc~0); 521#L588 assume !(2 == ~wl_pc~0); 522#L589 assume !(1 == ~c1_pc~0); 515#L599 assume !(1 == ~c2_pc~0); 517#L608 assume !(1 == ~wb_pc~0); 549#L617 assume !(1 == ~e_c~0); 555#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 556#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 593#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 610#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 623#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 550#L651-1 assume 0 == ~wl_st~0; 508#L668-1 [2020-10-19 20:11:05,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1738779219, now seen corresponding path program 1 times [2020-10-19 20:11:05,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481561444] [2020-10-19 20:11:05,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481561444] [2020-10-19 20:11:05,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:05,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840995976] [2020-10-19 20:11:05,335 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:05,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 2 times [2020-10-19 20:11:05,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328850248] [2020-10-19 20:11:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328850248] [2020-10-19 20:11:05,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:05,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915219935] [2020-10-19 20:11:05,395 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:11:05,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:05,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:05,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:05,396 INFO L87 Difference]: Start difference. First operand 120 states and 213 transitions. cyclomatic complexity: 94 Second operand 3 states. [2020-10-19 20:11:05,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:05,411 INFO L93 Difference]: Finished difference Result 120 states and 212 transitions. [2020-10-19 20:11:05,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:05,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 212 transitions. [2020-10-19 20:11:05,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:05,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 212 transitions. [2020-10-19 20:11:05,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-10-19 20:11:05,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-10-19 20:11:05,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 212 transitions. [2020-10-19 20:11:05,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:11:05,419 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2020-10-19 20:11:05,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 212 transitions. [2020-10-19 20:11:05,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-19 20:11:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-19 20:11:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 212 transitions. [2020-10-19 20:11:05,426 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2020-10-19 20:11:05,427 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 212 transitions. [2020-10-19 20:11:05,427 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:11:05,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 212 transitions. [2020-10-19 20:11:05,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:05,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:05,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:05,430 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, 1] [2020-10-19 20:11:05,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:05,431 INFO L794 eck$LassoCheckResult]: Stem: 866#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 778#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 779#L400 assume !(1 == ~c_req_up~0); 814#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 815#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 834#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 849#L421-1 assume !(1 == ~wb_i~0);~wb_st~0 := 2; 858#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 757#L431-1 assume !(0 == ~e_f~0); 758#L436-1 assume !(0 == ~e_g~0); 801#L441-1 assume !(0 == ~e_e~0); 835#L446-1 assume !(0 == ~e_c~0); 852#L451-1 assume !(0 == ~e_wl~0); 869#L456-1 assume !(1 == ~wl_pc~0); 850#L468 assume !(2 == ~wl_pc~0); 824#L469 assume !(1 == ~c1_pc~0); 823#L479 assume !(1 == ~c2_pc~0); 825#L488 assume !(1 == ~wb_pc~0); 782#L497 assume !(1 == ~e_c~0); 783#L506-1 assume !(1 == ~e_e~0); 867#L511-1 assume !(1 == ~e_f~0); 784#L516-1 assume !(1 == ~e_g~0); 785#L521-1 assume !(1 == ~e_c~0); 827#L526-1 assume !(1 == ~e_wl~0); 755#L668-1 [2020-10-19 20:11:05,431 INFO L796 eck$LassoCheckResult]: Loop: 755#L668-1 assume !false; 810#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 792#L373 assume !false; 793#L291 assume !(0 == ~wl_st~0); 836#L295 assume !(0 == ~c1_st~0); 837#L298 assume !(0 == ~c2_st~0); 832#L301 assume !(0 == ~wb_st~0); 805#L304 assume !(0 == ~r_st~0); 807#L389 start_simulation_~kernel_st~0 := 2; 771#L544 assume !(1 == ~c_req_up~0); 772#L544-2 start_simulation_~kernel_st~0 := 3; 861#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 862#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 864#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 776#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 777#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 811#L576-1 assume !(1 == ~wl_pc~0); 768#L588 assume !(2 == ~wl_pc~0); 769#L589 assume !(1 == ~c1_pc~0); 762#L599 assume !(1 == ~c2_pc~0); 764#L608 assume !(1 == ~wb_pc~0); 796#L617 assume !(1 == ~e_c~0); 802#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 803#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 840#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 857#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 870#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 797#L651-1 assume 0 == ~wl_st~0; 755#L668-1 [2020-10-19 20:11:05,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1738539627, now seen corresponding path program 1 times [2020-10-19 20:11:05,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733498105] [2020-10-19 20:11:05,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733498105] [2020-10-19 20:11:05,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:05,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908041759] [2020-10-19 20:11:05,469 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 3 times [2020-10-19 20:11:05,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281278856] [2020-10-19 20:11:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281278856] [2020-10-19 20:11:05,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:05,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30846092] [2020-10-19 20:11:05,496 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:11:05,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:05,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:05,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:05,497 INFO L87 Difference]: Start difference. First operand 120 states and 212 transitions. cyclomatic complexity: 93 Second operand 3 states. [2020-10-19 20:11:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:05,509 INFO L93 Difference]: Finished difference Result 120 states and 211 transitions. [2020-10-19 20:11:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:05,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 211 transitions. [2020-10-19 20:11:05,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:05,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 120 states and 211 transitions. [2020-10-19 20:11:05,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2020-10-19 20:11:05,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2020-10-19 20:11:05,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 211 transitions. [2020-10-19 20:11:05,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:11:05,515 INFO L691 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2020-10-19 20:11:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 211 transitions. [2020-10-19 20:11:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-19 20:11:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-19 20:11:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 211 transitions. [2020-10-19 20:11:05,522 INFO L714 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2020-10-19 20:11:05,522 INFO L594 BuchiCegarLoop]: Abstraction has 120 states and 211 transitions. [2020-10-19 20:11:05,522 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 20:11:05,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 211 transitions. [2020-10-19 20:11:05,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 89 [2020-10-19 20:11:05,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:05,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:05,526 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, 1] [2020-10-19 20:11:05,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:05,526 INFO L794 eck$LassoCheckResult]: Stem: 1113#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 1025#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 1026#L400 assume !(1 == ~c_req_up~0); 1061#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 1062#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 1081#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 1096#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 1105#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 1004#L431-1 assume !(0 == ~e_f~0); 1005#L436-1 assume !(0 == ~e_g~0); 1048#L441-1 assume !(0 == ~e_e~0); 1082#L446-1 assume !(0 == ~e_c~0); 1099#L451-1 assume !(0 == ~e_wl~0); 1116#L456-1 assume !(1 == ~wl_pc~0); 1097#L468 assume !(2 == ~wl_pc~0); 1071#L469 assume !(1 == ~c1_pc~0); 1070#L479 assume !(1 == ~c2_pc~0); 1072#L488 assume !(1 == ~wb_pc~0); 1029#L497 assume !(1 == ~e_c~0); 1030#L506-1 assume !(1 == ~e_e~0); 1114#L511-1 assume !(1 == ~e_f~0); 1031#L516-1 assume !(1 == ~e_g~0); 1032#L521-1 assume !(1 == ~e_c~0); 1074#L526-1 assume !(1 == ~e_wl~0); 1002#L668-1 [2020-10-19 20:11:05,527 INFO L796 eck$LassoCheckResult]: Loop: 1002#L668-1 assume !false; 1057#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 1039#L373 assume !false; 1040#L291 assume !(0 == ~wl_st~0); 1083#L295 assume !(0 == ~c1_st~0); 1084#L298 assume !(0 == ~c2_st~0); 1079#L301 assume !(0 == ~wb_st~0); 1052#L304 assume !(0 == ~r_st~0); 1054#L389 start_simulation_~kernel_st~0 := 2; 1018#L544 assume !(1 == ~c_req_up~0); 1019#L544-2 start_simulation_~kernel_st~0 := 3; 1108#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 1109#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 1111#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 1023#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1024#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 1058#L576-1 assume !(1 == ~wl_pc~0); 1015#L588 assume !(2 == ~wl_pc~0); 1016#L589 assume !(1 == ~c1_pc~0); 1009#L599 assume !(1 == ~c2_pc~0); 1011#L608 assume !(1 == ~wb_pc~0); 1043#L617 assume !(1 == ~e_c~0); 1049#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 1050#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 1087#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 1104#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1117#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 1044#L651-1 assume 0 == ~wl_st~0; 1002#L668-1 [2020-10-19 20:11:05,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,527 INFO L82 PathProgramCache]: Analyzing trace with hash 255605079, now seen corresponding path program 1 times [2020-10-19 20:11:05,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133464484] [2020-10-19 20:11:05,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:05,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:05,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:05,614 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:05,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1624185410, now seen corresponding path program 4 times [2020-10-19 20:11:05,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969122216] [2020-10-19 20:11:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969122216] [2020-10-19 20:11:05,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:05,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238992011] [2020-10-19 20:11:05,662 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:11:05,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:05,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:05,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:05,664 INFO L87 Difference]: Start difference. First operand 120 states and 211 transitions. cyclomatic complexity: 92 Second operand 3 states. [2020-10-19 20:11:05,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:05,723 INFO L93 Difference]: Finished difference Result 152 states and 271 transitions. [2020-10-19 20:11:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:05,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 271 transitions. [2020-10-19 20:11:05,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 105 [2020-10-19 20:11:05,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 152 states and 271 transitions. [2020-10-19 20:11:05,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2020-10-19 20:11:05,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2020-10-19 20:11:05,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 271 transitions. [2020-10-19 20:11:05,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:11:05,731 INFO L691 BuchiCegarLoop]: Abstraction has 152 states and 271 transitions. [2020-10-19 20:11:05,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 271 transitions. [2020-10-19 20:11:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-10-19 20:11:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-19 20:11:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 271 transitions. [2020-10-19 20:11:05,739 INFO L714 BuchiCegarLoop]: Abstraction has 152 states and 271 transitions. [2020-10-19 20:11:05,740 INFO L594 BuchiCegarLoop]: Abstraction has 152 states and 271 transitions. [2020-10-19 20:11:05,740 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 20:11:05,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 271 transitions. [2020-10-19 20:11:05,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 105 [2020-10-19 20:11:05,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:05,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:05,743 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, 1] [2020-10-19 20:11:05,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:05,744 INFO L794 eck$LassoCheckResult]: Stem: 1393#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 1304#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 1305#L400 assume !(1 == ~c_req_up~0); 1340#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 1341#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 1360#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 1375#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 1385#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 1282#L431-1 assume !(0 == ~e_f~0); 1283#L436-1 assume !(0 == ~e_g~0); 1327#L441-1 assume !(0 == ~e_e~0); 1361#L446-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1378#L451-1 assume !(0 == ~e_wl~0); 1396#L456-1 assume !(1 == ~wl_pc~0); 1376#L468 assume !(2 == ~wl_pc~0); 1350#L469 assume !(1 == ~c1_pc~0); 1349#L479 assume !(1 == ~c2_pc~0); 1351#L488 assume !(1 == ~wb_pc~0); 1308#L497 assume 1 == ~e_c~0;~r_st~0 := 0; 1309#L506-1 assume !(1 == ~e_e~0); 1394#L511-1 assume !(1 == ~e_f~0); 1310#L516-1 assume !(1 == ~e_g~0); 1311#L521-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1353#L526-1 assume !(1 == ~e_wl~0); 1280#L668-1 [2020-10-19 20:11:05,744 INFO L796 eck$LassoCheckResult]: Loop: 1280#L668-1 assume !false; 1336#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 1318#L373 assume !false; 1319#L291 assume !(0 == ~wl_st~0); 1362#L295 assume !(0 == ~c1_st~0); 1363#L298 assume !(0 == ~c2_st~0); 1358#L301 assume !(0 == ~wb_st~0); 1331#L304 assume !(0 == ~r_st~0); 1333#L389 start_simulation_~kernel_st~0 := 2; 1296#L544 assume !(1 == ~c_req_up~0); 1297#L544-2 start_simulation_~kernel_st~0 := 3; 1388#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 1389#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 1391#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 1301#L566-1 assume 0 == ~e_c~0;~e_c~0 := 1; 1302#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 1337#L576-1 assume 1 == ~wl_pc~0; 1330#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 1294#L589 assume !(1 == ~c1_pc~0); 1287#L599 assume !(1 == ~c2_pc~0); 1289#L608 assume !(1 == ~wb_pc~0); 1322#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 1328#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 1329#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 1366#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 1384#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 1397#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 1323#L651-1 assume 0 == ~wl_st~0; 1280#L668-1 [2020-10-19 20:11:05,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,745 INFO L82 PathProgramCache]: Analyzing trace with hash 785152729, now seen corresponding path program 1 times [2020-10-19 20:11:05,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943209410] [2020-10-19 20:11:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:05,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:05,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943209410] [2020-10-19 20:11:05,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:05,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:11:05,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702934076] [2020-10-19 20:11:05,780 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:05,780 INFO L82 PathProgramCache]: Analyzing trace with hash 346514803, now seen corresponding path program 1 times [2020-10-19 20:11:05,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:05,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075354452] [2020-10-19 20:11:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:05,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:05,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:05,799 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:05,919 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-19 20:11:06,020 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:06,021 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:06,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:06,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:06,022 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 20:11:06,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:06,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:06,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:06,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration6_Loop [2020-10-19 20:11:06,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:06,024 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:06,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,429 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:06,430 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:06,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:06,452 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:06,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:06,467 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:06,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:06,509 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:06,513 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:06,514 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:06,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:06,562 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:06,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 20:11:06,610 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:06,616 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 20:11:06,652 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:06,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:06,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:06,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:06,652 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:11:06,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:06,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:06,658 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:06,658 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration6_Loop [2020-10-19 20:11:06,658 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:06,659 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:06,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:06,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:07,089 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:07,095 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:07,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:07,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:07,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:07,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:07,108 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:07,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:07,111 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:07,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:07,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:07,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:07,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:07,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:07,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:07,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:07,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:07,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:07,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:07,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:07,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:07,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:07,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:07,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:07,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:07,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:07,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:07,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:07,206 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:11:07,215 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 20:11:07,215 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:07,221 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:11:07,221 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 20:11:07,221 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:11:07,222 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_c~0) = -1*~e_c~0 + 1 Supporting invariants [] [2020-10-19 20:11:07,263 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 20:11:07,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:07,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:11:07,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:07,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:11:07,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:07,572 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 20:11:07,573 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 152 states and 271 transitions. cyclomatic complexity: 120 Second operand 5 states. [2020-10-19 20:11:07,690 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 152 states and 271 transitions. cyclomatic complexity: 120. Second operand 5 states. Result 470 states and 831 transitions. Complement of second has 5 states. [2020-10-19 20:11:07,691 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 [2020-10-19 20:11:07,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 20:11:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2020-10-19 20:11:07,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 28 letters. [2020-10-19 20:11:07,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:07,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 52 letters. Loop has 28 letters. [2020-10-19 20:11:07,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:07,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 56 letters. [2020-10-19 20:11:07,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:07,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 470 states and 831 transitions. [2020-10-19 20:11:07,713 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2020-10-19 20:11:07,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 470 states to 455 states and 801 transitions. [2020-10-19 20:11:07,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2020-10-19 20:11:07,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 349 [2020-10-19 20:11:07,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 455 states and 801 transitions. [2020-10-19 20:11:07,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:07,727 INFO L691 BuchiCegarLoop]: Abstraction has 455 states and 801 transitions. [2020-10-19 20:11:07,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states and 801 transitions. [2020-10-19 20:11:07,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 348. [2020-10-19 20:11:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-10-19 20:11:07,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 613 transitions. [2020-10-19 20:11:07,763 INFO L714 BuchiCegarLoop]: Abstraction has 348 states and 613 transitions. [2020-10-19 20:11:07,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:07,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:11:07,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:11:07,766 INFO L87 Difference]: Start difference. First operand 348 states and 613 transitions. Second operand 4 states. [2020-10-19 20:11:07,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:07,894 INFO L93 Difference]: Finished difference Result 634 states and 1098 transitions. [2020-10-19 20:11:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 20:11:07,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 634 states and 1098 transitions. [2020-10-19 20:11:07,903 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 358 [2020-10-19 20:11:07,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 634 states to 634 states and 1098 transitions. [2020-10-19 20:11:07,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 452 [2020-10-19 20:11:07,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 452 [2020-10-19 20:11:07,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 634 states and 1098 transitions. [2020-10-19 20:11:07,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:07,913 INFO L691 BuchiCegarLoop]: Abstraction has 634 states and 1098 transitions. [2020-10-19 20:11:07,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states and 1098 transitions. [2020-10-19 20:11:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 607. [2020-10-19 20:11:07,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-19 20:11:07,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1059 transitions. [2020-10-19 20:11:07,936 INFO L714 BuchiCegarLoop]: Abstraction has 607 states and 1059 transitions. [2020-10-19 20:11:07,936 INFO L594 BuchiCegarLoop]: Abstraction has 607 states and 1059 transitions. [2020-10-19 20:11:07,936 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 20:11:07,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 607 states and 1059 transitions. [2020-10-19 20:11:07,941 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 358 [2020-10-19 20:11:07,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:07,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:07,947 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, 1] [2020-10-19 20:11:07,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:07,948 INFO L794 eck$LassoCheckResult]: Stem: 3285#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 3109#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 3110#L400 assume !(1 == ~c_req_up~0); 3210#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 3390#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 3388#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 3386#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 3383#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 3381#L431-1 assume !(0 == ~e_f~0); 3379#L436-1 assume !(0 == ~e_g~0); 3378#L441-1 assume !(0 == ~e_e~0); 3377#L446-1 assume !(0 == ~e_c~0); 3376#L451-1 assume !(0 == ~e_wl~0); 3375#L456-1 assume !(1 == ~wl_pc~0); 3372#L468 assume !(2 == ~wl_pc~0); 3370#L469 assume !(1 == ~c1_pc~0); 3367#L479 assume !(1 == ~c2_pc~0); 3349#L488 assume !(1 == ~wb_pc~0); 3340#L497 assume 1 == ~e_c~0;~r_st~0 := 0; 3116#L506-1 assume !(1 == ~e_e~0); 3286#L511-1 assume !(1 == ~e_f~0); 3117#L516-1 assume !(1 == ~e_g~0); 3118#L521-1 assume 1 == ~e_c~0;~e_c~0 := 2; 3198#L526-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 3246#L668-1 [2020-10-19 20:11:07,948 INFO L796 eck$LassoCheckResult]: Loop: 3246#L668-1 assume !false; 3500#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 3498#L373 assume !false; 3496#L291 assume !(0 == ~wl_st~0); 3494#L295 assume !(0 == ~c1_st~0); 3492#L298 assume !(0 == ~c2_st~0); 3490#L301 assume !(0 == ~wb_st~0); 3486#L304 assume !(0 == ~r_st~0); 3484#L389 start_simulation_~kernel_st~0 := 2; 3478#L544 assume !(1 == ~c_req_up~0); 3476#L544-2 start_simulation_~kernel_st~0 := 3; 3473#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 3474#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 3469#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 3470#L566-1 assume !(0 == ~e_c~0); 3448#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 3466#L576-1 assume 1 == ~wl_pc~0; 3461#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 3460#L589 assume !(1 == ~c1_pc~0); 3455#L599 assume !(1 == ~c2_pc~0); 3454#L608 assume !(1 == ~wb_pc~0); 3430#L617 assume 1 == ~e_c~0;~r_st~0 := 0; 3429#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 3426#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 3423#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 3418#L641-1 assume 1 == ~e_c~0;~e_c~0 := 2; 3419#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 3526#L651-1 assume 0 == ~wl_st~0; 3246#L668-1 [2020-10-19 20:11:07,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:07,949 INFO L82 PathProgramCache]: Analyzing trace with hash 198346713, now seen corresponding path program 1 times [2020-10-19 20:11:07,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:07,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421602746] [2020-10-19 20:11:07,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:08,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:08,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421602746] [2020-10-19 20:11:08,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:08,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:08,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225881650] [2020-10-19 20:11:08,026 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:08,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:08,028 INFO L82 PathProgramCache]: Analyzing trace with hash -664602447, now seen corresponding path program 1 times [2020-10-19 20:11:08,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:08,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498622661] [2020-10-19 20:11:08,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:08,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:08,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:08,059 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:08,203 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-19 20:11:08,258 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:08,258 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:08,258 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:08,258 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:08,258 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 20:11:08,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,258 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:08,258 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:08,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration7_Loop [2020-10-19 20:11:08,259 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:08,259 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:08,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:08,608 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:08,608 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:08,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,614 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,618 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:08,618 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:08,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,658 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:08,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:08,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,712 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:08,715 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:08,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:08,770 INFO L437 LassoAnalysis]: Proved nontermination for one component. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,770 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp___3~0=0} Honda state: {ULTIMATE.start_eval_~tmp___3~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:08,810 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:08,811 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet9=0} Honda state: {ULTIMATE.start_eval_#t~nondet9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:08,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,854 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:08,860 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet7=0} Honda state: {ULTIMATE.start_eval_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:08,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,903 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:08,907 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Honda state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:08,938 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:08,938 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=-5} Honda state: {~c1_st~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,960 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:08,960 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:08,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 20:11:08,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:08,989 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 20:11:09,010 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:09,010 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:09,010 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:09,010 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:09,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:11:09,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:09,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:09,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration7_Loop [2020-10-19 20:11:09,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:09,011 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:09,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:09,348 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:09,348 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:09,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:09,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:09,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:09,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:09,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:09,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:09,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:09,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:09,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,461 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:09,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,462 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:09,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:09,464 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:09,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:09,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:09,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:09,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:09,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:09,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:09,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:09,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:09,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:09,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:09,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:09,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:09,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,577 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:09,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,578 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:09,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:09,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:09,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:09,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:09,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:09,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:09,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:09,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:09,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:09,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:11:09,621 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 20:11:09,621 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:09,626 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:11:09,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 20:11:09,626 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:11:09,627 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_c~0) = -2*~e_c~0 + 3 Supporting invariants [] Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:09,662 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 20:11:09,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:09,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:11:09,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:09,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:11:09,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:09,792 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 20:11:09,793 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 607 states and 1059 transitions. cyclomatic complexity: 458 Second operand 5 states. [2020-10-19 20:11:09,851 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 607 states and 1059 transitions. cyclomatic complexity: 458. Second operand 5 states. Result 989 states and 1720 transitions. Complement of second has 7 states. [2020-10-19 20:11:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 20:11:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 20:11:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2020-10-19 20:11:09,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 374 transitions. Stem has 24 letters. Loop has 28 letters. [2020-10-19 20:11:09,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:09,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 374 transitions. Stem has 52 letters. Loop has 28 letters. [2020-10-19 20:11:09,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:09,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 374 transitions. Stem has 24 letters. Loop has 56 letters. [2020-10-19 20:11:09,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:09,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 989 states and 1720 transitions. [2020-10-19 20:11:09,864 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 558 [2020-10-19 20:11:09,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 989 states to 985 states and 1712 transitions. [2020-10-19 20:11:09,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 636 [2020-10-19 20:11:09,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 639 [2020-10-19 20:11:09,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 985 states and 1712 transitions. [2020-10-19 20:11:09,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:09,911 INFO L691 BuchiCegarLoop]: Abstraction has 985 states and 1712 transitions. [2020-10-19 20:11:09,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states and 1712 transitions. [2020-10-19 20:11:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 528. [2020-10-19 20:11:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-19 20:11:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 921 transitions. [2020-10-19 20:11:09,939 INFO L714 BuchiCegarLoop]: Abstraction has 528 states and 921 transitions. [2020-10-19 20:11:09,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:09,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:09,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:09,940 INFO L87 Difference]: Start difference. First operand 528 states and 921 transitions. Second operand 3 states. [2020-10-19 20:11:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:09,989 INFO L93 Difference]: Finished difference Result 799 states and 1379 transitions. [2020-10-19 20:11:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:09,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 799 states and 1379 transitions. [2020-10-19 20:11:09,996 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 457 [2020-10-19 20:11:10,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 799 states to 631 states and 1089 transitions. [2020-10-19 20:11:10,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 537 [2020-10-19 20:11:10,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 542 [2020-10-19 20:11:10,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 631 states and 1089 transitions. [2020-10-19 20:11:10,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:10,002 INFO L691 BuchiCegarLoop]: Abstraction has 631 states and 1089 transitions. [2020-10-19 20:11:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states and 1089 transitions. [2020-10-19 20:11:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 446. [2020-10-19 20:11:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-19 20:11:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 774 transitions. [2020-10-19 20:11:10,014 INFO L714 BuchiCegarLoop]: Abstraction has 446 states and 774 transitions. [2020-10-19 20:11:10,014 INFO L594 BuchiCegarLoop]: Abstraction has 446 states and 774 transitions. [2020-10-19 20:11:10,014 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 20:11:10,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 774 transitions. [2020-10-19 20:11:10,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 279 [2020-10-19 20:11:10,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:10,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:10,018 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, 1] [2020-10-19 20:11:10,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:10,019 INFO L794 eck$LassoCheckResult]: Stem: 6379#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 6213#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 6214#L400 assume !(1 == ~c_req_up~0); 6278#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 6279#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 6424#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 6423#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 6422#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 6173#L431-1 assume !(0 == ~e_f~0); 6174#L436-1 assume !(0 == ~e_g~0); 6253#L441-1 assume !(0 == ~e_e~0); 6315#L446-1 assume !(0 == ~e_c~0); 6348#L451-1 assume !(0 == ~e_wl~0); 6395#L456-1 assume !(1 == ~wl_pc~0); 6396#L468 assume !(2 == ~wl_pc~0); 6294#L469 assume !(1 == ~c1_pc~0); 6293#L479 assume !(1 == ~c2_pc~0); 6296#L488 assume !(1 == ~wb_pc~0); 6219#L497 assume !(1 == ~e_c~0); 6220#L506-1 assume !(1 == ~e_e~0); 6392#L511-1 assume 1 == ~e_f~0;~e_f~0 := 2; 6221#L516-1 assume !(1 == ~e_g~0); 6222#L521-1 assume !(1 == ~e_c~0); 6343#L526-1 assume !(1 == ~e_wl~0); 6168#L668-1 [2020-10-19 20:11:10,019 INFO L796 eck$LassoCheckResult]: Loop: 6168#L668-1 assume !false; 6400#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 6449#L373 assume !false; 6448#L291 assume !(0 == ~wl_st~0); 6447#L295 assume !(0 == ~c1_st~0); 6446#L298 assume !(0 == ~c2_st~0); 6445#L301 assume !(0 == ~wb_st~0); 6260#L304 assume !(0 == ~r_st~0); 6262#L389 start_simulation_~kernel_st~0 := 2; 6199#L544 assume !(1 == ~c_req_up~0); 6200#L544-2 start_simulation_~kernel_st~0 := 3; 6440#L556 assume 0 == ~e_f~0;~e_f~0 := 1; 6373#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 6374#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 6205#L566-1 assume !(0 == ~e_c~0); 6206#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 6270#L576-1 assume 1 == ~wl_pc~0; 6258#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 6188#L589 assume !(1 == ~c1_pc~0); 6175#L599 assume !(1 == ~c2_pc~0); 6177#L608 assume !(1 == ~wb_pc~0); 6240#L617 assume !(1 == ~e_c~0); 6254#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 6255#L631-1 assume 1 == ~e_f~0;~e_f~0 := 2; 6320#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 6356#L641-1 assume !(1 == ~e_c~0); 6385#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 6245#L651-1 assume 0 == ~wl_st~0; 6168#L668-1 [2020-10-19 20:11:10,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:10,020 INFO L82 PathProgramCache]: Analyzing trace with hash 255545497, now seen corresponding path program 1 times [2020-10-19 20:11:10,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:10,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222668369] [2020-10-19 20:11:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:10,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222668369] [2020-10-19 20:11:10,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:10,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:11:10,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431949509] [2020-10-19 20:11:10,046 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:10,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:10,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1110406837, now seen corresponding path program 1 times [2020-10-19 20:11:10,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:10,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169513977] [2020-10-19 20:11:10,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:10,052 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:10,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:10,059 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:10,158 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:10,158 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:10,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:10,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:10,158 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 20:11:10,158 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:10,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:10,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:10,159 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration8_Loop [2020-10-19 20:11:10,159 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:10,159 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:10,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,456 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:10,456 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:10,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:10,460 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:10,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 20:11:10,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:10,493 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 20:11:10,524 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:10,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:10,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:10,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:10,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:11:10,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:10,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:10,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:10,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration8_Loop [2020-10-19 20:11:10,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:10,525 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:10,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:10,804 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:10,804 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:10,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:10,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:10,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:10,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:10,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:10,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:10,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:10,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:10,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:10,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:10,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:10,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:10,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:10,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:10,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:10,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:10,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:10,864 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:11:10,867 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 20:11:10,867 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:10,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:11:10,870 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 20:11:10,870 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:11:10,870 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_f~0) = -1*~e_f~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:10,902 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 20:11:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:10,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:11:10,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:10,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:11:10,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:10,981 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 20:11:10,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 446 states and 774 transitions. cyclomatic complexity: 331 Second operand 5 states. [2020-10-19 20:11:11,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 446 states and 774 transitions. cyclomatic complexity: 331. Second operand 5 states. Result 1463 states and 2534 transitions. Complement of second has 5 states. [2020-10-19 20:11:11,021 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 [2020-10-19 20:11:11,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 20:11:11,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2020-10-19 20:11:11,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 361 transitions. Stem has 24 letters. Loop has 28 letters. [2020-10-19 20:11:11,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:11,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 361 transitions. Stem has 52 letters. Loop has 28 letters. [2020-10-19 20:11:11,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:11,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 361 transitions. Stem has 24 letters. Loop has 56 letters. [2020-10-19 20:11:11,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:11,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1463 states and 2534 transitions. [2020-10-19 20:11:11,034 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 738 [2020-10-19 20:11:11,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1463 states to 1448 states and 2511 transitions. [2020-10-19 20:11:11,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 829 [2020-10-19 20:11:11,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 837 [2020-10-19 20:11:11,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1448 states and 2511 transitions. [2020-10-19 20:11:11,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:11,045 INFO L691 BuchiCegarLoop]: Abstraction has 1448 states and 2511 transitions. [2020-10-19 20:11:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states and 2511 transitions. [2020-10-19 20:11:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1054. [2020-10-19 20:11:11,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-10-19 20:11:11,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1842 transitions. [2020-10-19 20:11:11,068 INFO L714 BuchiCegarLoop]: Abstraction has 1054 states and 1842 transitions. [2020-10-19 20:11:11,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:11,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:11:11,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:11:11,069 INFO L87 Difference]: Start difference. First operand 1054 states and 1842 transitions. Second operand 4 states. [2020-10-19 20:11:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:11,202 INFO L93 Difference]: Finished difference Result 1372 states and 2377 transitions. [2020-10-19 20:11:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 20:11:11,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1372 states and 2377 transitions. [2020-10-19 20:11:11,211 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 595 [2020-10-19 20:11:11,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1372 states to 1372 states and 2377 transitions. [2020-10-19 20:11:11,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 758 [2020-10-19 20:11:11,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 758 [2020-10-19 20:11:11,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1372 states and 2377 transitions. [2020-10-19 20:11:11,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:11,222 INFO L691 BuchiCegarLoop]: Abstraction has 1372 states and 2377 transitions. [2020-10-19 20:11:11,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states and 2377 transitions. [2020-10-19 20:11:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1265. [2020-10-19 20:11:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-10-19 20:11:11,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2201 transitions. [2020-10-19 20:11:11,246 INFO L714 BuchiCegarLoop]: Abstraction has 1265 states and 2201 transitions. [2020-10-19 20:11:11,246 INFO L594 BuchiCegarLoop]: Abstraction has 1265 states and 2201 transitions. [2020-10-19 20:11:11,246 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-19 20:11:11,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1265 states and 2201 transitions. [2020-10-19 20:11:11,252 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 514 [2020-10-19 20:11:11,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:11,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:11,253 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, 1] [2020-10-19 20:11:11,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:11,254 INFO L794 eck$LassoCheckResult]: Stem: 10916#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 10729#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 10730#L400 assume !(1 == ~c_req_up~0); 10831#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 10833#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 10834#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 10896#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 10897#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 10689#L431-1 assume !(0 == ~e_f~0); 10690#L436-1 assume !(0 == ~e_g~0); 10769#L441-1 assume !(0 == ~e_e~0); 10835#L446-1 assume !(0 == ~e_c~0); 10886#L451-1 assume !(0 == ~e_wl~0); 11081#L456-1 assume !(1 == ~wl_pc~0); 10881#L468 assume !(2 == ~wl_pc~0); 10882#L469 assume !(1 == ~c1_pc~0); 11078#L479 assume !(1 == ~c2_pc~0); 11076#L488 assume !(1 == ~wb_pc~0); 10735#L497 assume !(1 == ~e_c~0); 10736#L506-1 assume !(1 == ~e_e~0); 10936#L511-1 assume !(1 == ~e_f~0); 10937#L516-1 assume !(1 == ~e_g~0); 10819#L521-1 assume !(1 == ~e_c~0); 10820#L526-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 10877#L668-1 [2020-10-19 20:11:11,254 INFO L796 eck$LassoCheckResult]: Loop: 10877#L668-1 assume !false; 11740#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 11741#L373 assume !false; 11735#L291 assume !(0 == ~wl_st~0); 11736#L295 assume !(0 == ~c1_st~0); 11729#L298 assume !(0 == ~c2_st~0); 11730#L301 assume !(0 == ~wb_st~0); 11708#L304 assume !(0 == ~r_st~0); 11710#L389 start_simulation_~kernel_st~0 := 2; 11638#L544 assume !(1 == ~c_req_up~0); 11639#L544-2 start_simulation_~kernel_st~0 := 3; 11880#L556 assume !(0 == ~e_f~0); 11878#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 11873#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 11871#L566-1 assume !(0 == ~e_c~0); 11870#L571-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 11869#L576-1 assume 1 == ~wl_pc~0; 11867#L582 assume 1 == ~e_wl~0;~wl_st~0 := 0; 11864#L589 assume !(1 == ~c1_pc~0); 11861#L599 assume !(1 == ~c2_pc~0); 11858#L608 assume !(1 == ~wb_pc~0); 11855#L617 assume !(1 == ~e_c~0); 11851#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 11782#L631-1 assume !(1 == ~e_f~0); 11775#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 11761#L641-1 assume !(1 == ~e_c~0); 11758#L646-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 11753#L651-1 assume 0 == ~wl_st~0; 10877#L668-1 [2020-10-19 20:11:11,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:11,254 INFO L82 PathProgramCache]: Analyzing trace with hash 255605077, now seen corresponding path program 1 times [2020-10-19 20:11:11,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:11,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797640792] [2020-10-19 20:11:11,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:11,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797640792] [2020-10-19 20:11:11,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:11,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:11,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227219119] [2020-10-19 20:11:11,282 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:11,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:11,282 INFO L82 PathProgramCache]: Analyzing trace with hash -476094023, now seen corresponding path program 1 times [2020-10-19 20:11:11,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:11,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721537966] [2020-10-19 20:11:11,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:11,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:11,289 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:11,293 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:11,391 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:11,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:11,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:11,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:11,392 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 20:11:11,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:11,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:11,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration9_Loop [2020-10-19 20:11:11,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:11,393 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:11,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:11,722 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:11,722 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:11,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,728 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,732 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,732 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=-5} Honda state: {~c1_st~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:11,769 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,769 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp___2~0=0} Honda state: {ULTIMATE.start_eval_~tmp___2~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:11,793 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,793 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~r_st~0=7} Honda state: {~r_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:11,818 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,818 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Honda state: {ULTIMATE.start_start_simulation_~kernel_st~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:11,849 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,850 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:11,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,884 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,887 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,887 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:11,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,924 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,929 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,929 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:11,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:11,965 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:11,968 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:11,968 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_~tmp~0=0} Honda state: {ULTIMATE.start_eval_~tmp~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:12,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:12,005 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,015 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:12,015 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~wb_st~0=7} Honda state: {~wb_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:12,045 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 20:11:12,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:12,101 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 20:11:12,102 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:12,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:12,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:12,102 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:12,103 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:11:12,103 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,103 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:12,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:12,103 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration9_Loop [2020-10-19 20:11:12,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:12,103 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:12,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:12,474 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:12,474 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,480 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:12,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,481 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:12,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:12,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:12,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:12,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,537 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:12,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,538 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:12,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:12,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:12,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,595 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:12,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,595 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:12,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,600 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:12,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:12,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:12,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:12,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:12,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,651 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:12,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:12,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:12,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,710 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:12,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,711 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:12,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:12,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,738 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:12,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,739 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:12,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,742 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:12,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:12,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:12,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:12,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:12,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:12,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:12,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:12,775 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:11:12,777 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 20:11:12,777 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:12,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:11:12,779 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 20:11:12,779 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:11:12,780 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_wl~0) = -1*~e_wl~0 + 1 Supporting invariants [] [2020-10-19 20:11:12,800 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 20:11:12,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:12,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:11:12,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:12,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:11:12,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:12,879 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 20:11:12,879 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1265 states and 2201 transitions. cyclomatic complexity: 944 Second operand 5 states. [2020-10-19 20:11:12,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1265 states and 2201 transitions. cyclomatic complexity: 944. Second operand 5 states. Result 2556 states and 4440 transitions. Complement of second has 5 states. [2020-10-19 20:11:12,923 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 [2020-10-19 20:11:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 20:11:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2020-10-19 20:11:12,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 28 letters. [2020-10-19 20:11:12,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:12,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 52 letters. Loop has 28 letters. [2020-10-19 20:11:12,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:12,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 370 transitions. Stem has 24 letters. Loop has 56 letters. [2020-10-19 20:11:12,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:12,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2556 states and 4440 transitions. [2020-10-19 20:11:12,943 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1097 [2020-10-19 20:11:12,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2556 states to 2552 states and 4432 transitions. [2020-10-19 20:11:12,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1248 [2020-10-19 20:11:12,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1270 [2020-10-19 20:11:12,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2552 states and 4432 transitions. [2020-10-19 20:11:12,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:12,963 INFO L691 BuchiCegarLoop]: Abstraction has 2552 states and 4432 transitions. [2020-10-19 20:11:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states and 4432 transitions. [2020-10-19 20:11:12,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2153. [2020-10-19 20:11:12,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2153 states. [2020-10-19 20:11:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 3746 transitions. [2020-10-19 20:11:13,007 INFO L714 BuchiCegarLoop]: Abstraction has 2153 states and 3746 transitions. [2020-10-19 20:11:13,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:13,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:11:13,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:11:13,007 INFO L87 Difference]: Start difference. First operand 2153 states and 3746 transitions. Second operand 4 states. [2020-10-19 20:11:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:13,111 INFO L93 Difference]: Finished difference Result 3113 states and 5362 transitions. [2020-10-19 20:11:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 20:11:13,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3113 states and 5362 transitions. [2020-10-19 20:11:13,138 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1173 [2020-10-19 20:11:13,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3113 states to 3113 states and 5362 transitions. [2020-10-19 20:11:13,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1534 [2020-10-19 20:11:13,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1534 [2020-10-19 20:11:13,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3113 states and 5362 transitions. [2020-10-19 20:11:13,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:13,168 INFO L691 BuchiCegarLoop]: Abstraction has 3113 states and 5362 transitions. [2020-10-19 20:11:13,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states and 5362 transitions. [2020-10-19 20:11:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 2719. [2020-10-19 20:11:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2719 states. [2020-10-19 20:11:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 4701 transitions. [2020-10-19 20:11:13,236 INFO L714 BuchiCegarLoop]: Abstraction has 2719 states and 4701 transitions. [2020-10-19 20:11:13,236 INFO L594 BuchiCegarLoop]: Abstraction has 2719 states and 4701 transitions. [2020-10-19 20:11:13,236 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-19 20:11:13,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2719 states and 4701 transitions. [2020-10-19 20:11:13,252 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 991 [2020-10-19 20:11:13,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:13,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:13,254 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, 1, 1] [2020-10-19 20:11:13,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:13,254 INFO L794 eck$LassoCheckResult]: Stem: 20198#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 19997#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 19998#L400 assume !(1 == ~c_req_up~0); 20101#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 20105#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 20106#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 20169#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 20170#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 19957#L431-1 assume !(0 == ~e_f~0); 19958#L436-1 assume !(0 == ~e_g~0); 20241#L441-1 assume !(0 == ~e_e~0); 20156#L446-1 assume !(0 == ~e_c~0); 20157#L451-1 assume 0 == ~e_wl~0;~e_wl~0 := 1; 20204#L456-1 assume !(1 == ~wl_pc~0); 20640#L468 assume !(2 == ~wl_pc~0); 20637#L469 assume !(1 == ~c1_pc~0); 20628#L479 assume !(1 == ~c2_pc~0); 20621#L488 assume !(1 == ~wb_pc~0); 20616#L497 assume !(1 == ~e_c~0); 20614#L506-1 assume !(1 == ~e_e~0); 20613#L511-1 assume !(1 == ~e_f~0); 20611#L516-1 assume !(1 == ~e_g~0); 20609#L521-1 assume !(1 == ~e_c~0); 20607#L526-1 assume 1 == ~e_wl~0;~e_wl~0 := 2; 20605#L668-1 assume !false; 20056#L538 [2020-10-19 20:11:13,255 INFO L796 eck$LassoCheckResult]: Loop: 20056#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 20019#L373 assume !false; 20020#L291 assume !(0 == ~wl_st~0); 22531#L295 assume !(0 == ~c1_st~0); 22533#L298 assume !(0 == ~c2_st~0); 22529#L301 assume !(0 == ~wb_st~0); 22530#L304 assume !(0 == ~r_st~0); 22532#L389 start_simulation_~kernel_st~0 := 2; 19983#L544 assume !(1 == ~c_req_up~0); 19984#L544-2 start_simulation_~kernel_st~0 := 3; 20181#L556 assume !(0 == ~e_f~0); 20182#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 20191#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 20219#L566-1 assume !(0 == ~e_c~0); 22664#L571-1 assume !(0 == ~e_wl~0); 22663#L576-1 assume !(1 == ~wl_pc~0); 21753#L588 assume !(2 == ~wl_pc~0); 22660#L589 assume !(1 == ~c1_pc~0); 19965#L599 assume !(1 == ~c2_pc~0); 19967#L608 assume !(1 == ~wb_pc~0); 20026#L617 assume !(1 == ~e_c~0); 20039#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 20040#L631-1 assume !(1 == ~e_f~0); 20116#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 20166#L641-1 assume !(1 == ~e_c~0); 20232#L646-1 assume !(1 == ~e_wl~0); 20233#L651-1 assume 0 == ~wl_st~0; 21769#L668-1 assume !false; 20056#L538 [2020-10-19 20:11:13,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:13,255 INFO L82 PathProgramCache]: Analyzing trace with hash -79371012, now seen corresponding path program 1 times [2020-10-19 20:11:13,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:13,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650964187] [2020-10-19 20:11:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:13,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650964187] [2020-10-19 20:11:13,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:13,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:11:13,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334137198] [2020-10-19 20:11:13,280 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:13,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:13,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1867312416, now seen corresponding path program 1 times [2020-10-19 20:11:13,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:13,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761821148] [2020-10-19 20:11:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:13,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761821148] [2020-10-19 20:11:13,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:13,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:13,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666725701] [2020-10-19 20:11:13,297 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:11:13,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:13,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:11:13,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:11:13,298 INFO L87 Difference]: Start difference. First operand 2719 states and 4701 transitions. cyclomatic complexity: 1996 Second operand 4 states. [2020-10-19 20:11:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:13,375 INFO L93 Difference]: Finished difference Result 2772 states and 4664 transitions. [2020-10-19 20:11:13,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 20:11:13,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2772 states and 4664 transitions. [2020-10-19 20:11:13,391 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1014 [2020-10-19 20:11:13,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2772 states to 2772 states and 4664 transitions. [2020-10-19 20:11:13,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1176 [2020-10-19 20:11:13,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1176 [2020-10-19 20:11:13,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2772 states and 4664 transitions. [2020-10-19 20:11:13,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:13,413 INFO L691 BuchiCegarLoop]: Abstraction has 2772 states and 4664 transitions. [2020-10-19 20:11:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states and 4664 transitions. [2020-10-19 20:11:13,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2460. [2020-10-19 20:11:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-10-19 20:11:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 4176 transitions. [2020-10-19 20:11:13,461 INFO L714 BuchiCegarLoop]: Abstraction has 2460 states and 4176 transitions. [2020-10-19 20:11:13,461 INFO L594 BuchiCegarLoop]: Abstraction has 2460 states and 4176 transitions. [2020-10-19 20:11:13,461 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-19 20:11:13,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2460 states and 4176 transitions. [2020-10-19 20:11:13,469 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 838 [2020-10-19 20:11:13,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:13,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:13,470 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, 1, 1] [2020-10-19 20:11:13,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:13,471 INFO L794 eck$LassoCheckResult]: Stem: 25700#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 25498#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 25499#L400 assume !(1 == ~c_req_up~0); 25603#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 25604#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 25605#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 25672#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 25673#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 25458#L431-1 assume !(0 == ~e_f~0); 25459#L436-1 assume !(0 == ~e_g~0); 25606#L441-1 assume !(0 == ~e_e~0); 25607#L446-1 assume !(0 == ~e_c~0); 25754#L451-1 assume !(0 == ~e_wl~0); 25751#L456-1 assume !(1 == ~wl_pc~0); 25746#L468 assume !(2 == ~wl_pc~0); 25744#L469 assume !(1 == ~c1_pc~0); 25741#L479 assume !(1 == ~c2_pc~0); 25738#L488 assume !(1 == ~wb_pc~0); 25504#L497 assume !(1 == ~e_c~0); 25505#L506-1 assume !(1 == ~e_e~0); 25759#L511-1 assume !(1 == ~e_f~0); 25758#L516-1 assume !(1 == ~e_g~0); 25590#L521-1 assume !(1 == ~e_c~0); 25591#L526-1 assume !(1 == ~e_wl~0); 27369#L668-1 assume !false; 25780#L538 [2020-10-19 20:11:13,471 INFO L796 eck$LassoCheckResult]: Loop: 25780#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 27286#L373 assume !false; 27282#L291 assume !(0 == ~wl_st~0); 27283#L295 assume !(0 == ~c1_st~0); 27285#L298 assume !(0 == ~c2_st~0); 27280#L301 assume !(0 == ~wb_st~0); 27281#L304 assume !(0 == ~r_st~0); 27284#L389 start_simulation_~kernel_st~0 := 2; 27909#L544 assume !(1 == ~c_req_up~0); 27908#L544-2 start_simulation_~kernel_st~0 := 3; 27907#L556 assume !(0 == ~e_f~0); 27906#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 25715#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 25490#L566-1 assume !(0 == ~e_c~0); 25491#L571-1 assume !(0 == ~e_wl~0); 25559#L576-1 assume !(1 == ~wl_pc~0); 25472#L588 assume !(2 == ~wl_pc~0); 25473#L589 assume !(1 == ~c1_pc~0); 25460#L599 assume !(1 == ~c2_pc~0); 25462#L608 assume !(1 == ~wb_pc~0); 25531#L617 assume !(1 == ~e_c~0); 25540#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 25541#L631-1 assume !(1 == ~e_f~0); 27855#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 25708#L641-1 assume !(1 == ~e_c~0); 25709#L646-1 assume !(1 == ~e_wl~0); 25729#L651-1 assume 0 == ~wl_st~0; 27296#L668-1 assume !false; 25780#L538 [2020-10-19 20:11:13,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:13,471 INFO L82 PathProgramCache]: Analyzing trace with hash -666176964, now seen corresponding path program 1 times [2020-10-19 20:11:13,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:13,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568755809] [2020-10-19 20:11:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:13,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:13,488 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:13,494 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:13,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:13,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1867312416, now seen corresponding path program 2 times [2020-10-19 20:11:13,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:13,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428756981] [2020-10-19 20:11:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:13,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428756981] [2020-10-19 20:11:13,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:13,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:13,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060007851] [2020-10-19 20:11:13,512 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 20:11:13,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:13,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:13,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:13,512 INFO L87 Difference]: Start difference. First operand 2460 states and 4176 transitions. cyclomatic complexity: 1726 Second operand 3 states. [2020-10-19 20:11:13,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:13,554 INFO L93 Difference]: Finished difference Result 3939 states and 6623 transitions. [2020-10-19 20:11:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:13,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3939 states and 6623 transitions. [2020-10-19 20:11:13,572 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1340 [2020-10-19 20:11:13,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3939 states to 3939 states and 6623 transitions. [2020-10-19 20:11:13,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1508 [2020-10-19 20:11:13,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1508 [2020-10-19 20:11:13,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3939 states and 6623 transitions. [2020-10-19 20:11:13,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:13,598 INFO L691 BuchiCegarLoop]: Abstraction has 3939 states and 6623 transitions. [2020-10-19 20:11:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states and 6623 transitions. [2020-10-19 20:11:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3939. [2020-10-19 20:11:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3939 states. [2020-10-19 20:11:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 6623 transitions. [2020-10-19 20:11:13,660 INFO L714 BuchiCegarLoop]: Abstraction has 3939 states and 6623 transitions. [2020-10-19 20:11:13,660 INFO L594 BuchiCegarLoop]: Abstraction has 3939 states and 6623 transitions. [2020-10-19 20:11:13,660 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-19 20:11:13,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3939 states and 6623 transitions. [2020-10-19 20:11:13,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 1340 [2020-10-19 20:11:13,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:13,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:13,673 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, 1, 1] [2020-10-19 20:11:13,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:13,673 INFO L794 eck$LassoCheckResult]: Stem: 32092#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 31903#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 31904#L400 assume !(1 == ~c_req_up~0); 32007#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 32145#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 32143#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 32142#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 32139#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 32138#L431-1 assume !(0 == ~e_f~0); 32137#L436-1 assume !(0 == ~e_g~0); 32136#L441-1 assume !(0 == ~e_e~0); 32058#L446-1 assume !(0 == ~e_c~0); 32059#L451-1 assume !(0 == ~e_wl~0); 32119#L456-1 assume !(1 == ~wl_pc~0); 32055#L468 assume !(2 == ~wl_pc~0); 32056#L469 assume !(1 == ~c1_pc~0); 32141#L479 assume !(1 == ~c2_pc~0); 32134#L488 assume !(1 == ~wb_pc~0); 31910#L497 assume !(1 == ~e_c~0); 31911#L506-1 assume !(1 == ~e_e~0); 32159#L511-1 assume !(1 == ~e_f~0); 32158#L516-1 assume !(1 == ~e_g~0); 31994#L521-1 assume !(1 == ~e_c~0); 31995#L526-1 assume !(1 == ~e_wl~0); 35367#L668-1 assume !false; 33356#L538 [2020-10-19 20:11:13,673 INFO L796 eck$LassoCheckResult]: Loop: 33356#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 33353#L373 assume !false; 33319#L291 assume !(0 == ~wl_st~0); 33320#L295 assume !(0 == ~c1_st~0); 33952#L298 assume !(0 == ~c2_st~0); 32004#L301 assume !(0 == ~wb_st~0); 31951#L304 assume !(0 == ~r_st~0); 31953#L389 start_simulation_~kernel_st~0 := 2; 31889#L544 assume !(1 == ~c_req_up~0); 31890#L544-2 start_simulation_~kernel_st~0 := 3; 32078#L556 assume !(0 == ~e_f~0); 32079#L556-2 assume 0 == ~e_g~0;~e_g~0 := 1; 32085#L561-1 assume 0 == ~e_e~0;~e_e~0 := 1; 35735#L566-1 assume !(0 == ~e_c~0); 35734#L571-1 assume !(0 == ~e_wl~0); 34027#L576-1 assume !(1 == ~wl_pc~0); 34023#L588 assume 2 == ~wl_pc~0; 35732#L590 assume 1 == ~e_e~0;~wl_st~0 := 0; 35731#L589 assume !(1 == ~c1_pc~0); 35729#L599 assume !(1 == ~c2_pc~0); 35725#L608 assume !(1 == ~wb_pc~0); 35723#L617 assume !(1 == ~e_c~0); 35722#L626-1 assume 1 == ~e_e~0;~e_e~0 := 2; 35721#L631-1 assume !(1 == ~e_f~0); 32068#L636-1 assume 1 == ~e_g~0;~e_g~0 := 2; 32069#L641-1 assume !(1 == ~e_c~0); 33657#L646-1 assume !(1 == ~e_wl~0); 35688#L651-1 assume 0 == ~wl_st~0; 33369#L668-1 assume !false; 33356#L538 [2020-10-19 20:11:13,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:13,674 INFO L82 PathProgramCache]: Analyzing trace with hash -666176964, now seen corresponding path program 2 times [2020-10-19 20:11:13,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:13,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992082566] [2020-10-19 20:11:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:13,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:13,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:13,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:13,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:13,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1493800160, now seen corresponding path program 1 times [2020-10-19 20:11:13,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:13,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878689847] [2020-10-19 20:11:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:13,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:13,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:13,704 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:13,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:13,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2131193989, now seen corresponding path program 1 times [2020-10-19 20:11:13,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:13,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611490969] [2020-10-19 20:11:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:13,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611490969] [2020-10-19 20:11:13,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:13,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:13,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095015473] [2020-10-19 20:11:13,839 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-19 20:11:13,885 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:13,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:13,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:13,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:13,886 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 20:11:13,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:13,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:13,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:13,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration12_Loop [2020-10-19 20:11:13,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:13,886 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:13,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:13,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,211 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:14,211 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,218 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c1_st~0=-5} Honda state: {~c1_st~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,243 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet11=0} Honda state: {ULTIMATE.start_eval_#t~nondet11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,269 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,269 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~wb_pc~0=-8} Honda state: {~wb_pc~0=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,295 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,295 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet10=0} Honda state: {ULTIMATE.start_eval_#t~nondet10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,321 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,321 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~e_f~0=3} Honda state: {~e_f~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_eval_#t~nondet7=0} Honda state: {ULTIMATE.start_eval_#t~nondet7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,373 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,374 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~e_wl~0=3} Honda state: {~e_wl~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,399 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 20:11:14,399 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {~c2_st~0=7} Honda state: {~c2_st~0=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 20:11:14,422 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 20:11:14,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 20:11:14,478 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 20:11:14,480 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:11:14,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:11:14,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:11:14,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:11:14,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:11:14,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:11:14,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:11:14,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: toy.cil.c_Iteration12_Loop [2020-10-19 20:11:14,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:11:14,481 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:11:14,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:11:14,856 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:11:14,857 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:11:14,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:14,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:14,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:14,862 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:14,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:14,863 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:14,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:14,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:14,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:14,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:14,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:14,889 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:14,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:14,889 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:14,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:14,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:14,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:14,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:14,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:14,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:14,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:14,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:14,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:14,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:14,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:14,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:14,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:14,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:14,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:14,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:14,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:14,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:14,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:14,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:14,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:14,966 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:14,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:14,967 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:14,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:14,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:14,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:14,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:14,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:14,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:14,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:14,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:14,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:14,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:14,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:15,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:15,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:15,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:15,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:15,022 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:15,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:15,022 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:15,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:15,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:15,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:15,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:15,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:15,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:15,050 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:15,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:15,051 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:15,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:15,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:15,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:15,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:15,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:15,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:15,082 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:11:15,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:15,083 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:11:15,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:15,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:15,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:11:15,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:11:15,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:11:15,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:11:15,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:11:15,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:11:15,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:11:15,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:11:15,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:11:15,116 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 20:11:15,116 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:11:15,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:11:15,119 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 20:11:15,119 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:11:15,119 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~e_g~0) = -1*~e_g~0 + 1 Supporting invariants [] [2020-10-19 20:11:15,141 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 20:11:15,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:15,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:11:15,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:15,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:11:15,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:11:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:15,215 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 20:11:15,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3939 states and 6623 transitions. cyclomatic complexity: 2694 Second operand 5 states. [2020-10-19 20:11:15,289 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3939 states and 6623 transitions. cyclomatic complexity: 2694. Second operand 5 states. Result 11292 states and 18969 transitions. Complement of second has 5 states. [2020-10-19 20:11:15,289 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 [2020-10-19 20:11:15,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 20:11:15,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2020-10-19 20:11:15,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 197 transitions. Stem has 25 letters. Loop has 29 letters. [2020-10-19 20:11:15,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:15,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 197 transitions. Stem has 54 letters. Loop has 29 letters. [2020-10-19 20:11:15,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:15,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 197 transitions. Stem has 25 letters. Loop has 58 letters. [2020-10-19 20:11:15,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:11:15,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11292 states and 18969 transitions. [2020-10-19 20:11:15,341 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2584 [2020-10-19 20:11:15,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11292 states to 11292 states and 18969 transitions. [2020-10-19 20:11:15,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2899 [2020-10-19 20:11:15,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2940 [2020-10-19 20:11:15,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11292 states and 18969 transitions. [2020-10-19 20:11:15,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:15,401 INFO L691 BuchiCegarLoop]: Abstraction has 11292 states and 18969 transitions. [2020-10-19 20:11:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11292 states and 18969 transitions. [2020-10-19 20:11:15,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11292 to 11251. [2020-10-19 20:11:15,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11251 states. [2020-10-19 20:11:15,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11251 states to 11251 states and 18912 transitions. [2020-10-19 20:11:15,566 INFO L714 BuchiCegarLoop]: Abstraction has 11251 states and 18912 transitions. [2020-10-19 20:11:15,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:15,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:15,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:15,567 INFO L87 Difference]: Start difference. First operand 11251 states and 18912 transitions. Second operand 3 states. [2020-10-19 20:11:15,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:15,628 INFO L93 Difference]: Finished difference Result 10015 states and 16787 transitions. [2020-10-19 20:11:15,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:15,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10015 states and 16787 transitions. [2020-10-19 20:11:15,670 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2584 [2020-10-19 20:11:15,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10015 states to 10015 states and 16787 transitions. [2020-10-19 20:11:15,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2899 [2020-10-19 20:11:15,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2899 [2020-10-19 20:11:15,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10015 states and 16787 transitions. [2020-10-19 20:11:15,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:15,711 INFO L691 BuchiCegarLoop]: Abstraction has 10015 states and 16787 transitions. [2020-10-19 20:11:15,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states and 16787 transitions. [2020-10-19 20:11:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 9301. [2020-10-19 20:11:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9301 states. [2020-10-19 20:11:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9301 states to 9301 states and 15639 transitions. [2020-10-19 20:11:15,861 INFO L714 BuchiCegarLoop]: Abstraction has 9301 states and 15639 transitions. [2020-10-19 20:11:15,861 INFO L594 BuchiCegarLoop]: Abstraction has 9301 states and 15639 transitions. [2020-10-19 20:11:15,861 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-10-19 20:11:15,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9301 states and 15639 transitions. [2020-10-19 20:11:15,898 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 2584 [2020-10-19 20:11:15,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:15,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:15,899 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, 1, 1, 1] [2020-10-19 20:11:15,899 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:15,899 INFO L794 eck$LassoCheckResult]: Stem: 68784#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 68585#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 68586#L400 assume !(1 == ~c_req_up~0); 68655#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 68656#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 68692#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 68736#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 68754#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 68545#L431-1 assume !(0 == ~e_f~0); 68546#L436-1 assume !(0 == ~e_g~0); 68627#L441-1 assume !(0 == ~e_e~0); 68834#L446-1 assume !(0 == ~e_c~0); 68833#L451-1 assume !(0 == ~e_wl~0); 68831#L456-1 assume !(1 == ~wl_pc~0); 68826#L468 assume !(2 == ~wl_pc~0); 68824#L469 assume !(1 == ~c1_pc~0); 68821#L479 assume !(1 == ~c2_pc~0); 68818#L488 assume !(1 == ~wb_pc~0); 68591#L497 assume !(1 == ~e_c~0); 68592#L506-1 assume !(1 == ~e_e~0); 68845#L511-1 assume !(1 == ~e_f~0); 68844#L516-1 assume !(1 == ~e_g~0); 68680#L521-1 assume !(1 == ~e_c~0); 68681#L526-1 assume !(1 == ~e_wl~0); 69202#L668-1 assume !false; 69132#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 69133#L373 [2020-10-19 20:11:15,899 INFO L796 eck$LassoCheckResult]: Loop: 69133#L373 assume !false; 75237#L291 assume 0 == ~wl_st~0; 75232#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 75231#L317 assume !(0 != eval_~tmp~0); 75227#L313 assume !(0 == ~c1_st~0); 75223#L328 assume !(0 == ~c2_st~0); 75250#L343 assume !(0 == ~wb_st~0); 75246#L358 assume !(0 == ~r_st~0); 69133#L373 [2020-10-19 20:11:15,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:15,900 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 1 times [2020-10-19 20:11:15,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:15,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341917854] [2020-10-19 20:11:15,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:15,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:15,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:15,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:15,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:15,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1282692020, now seen corresponding path program 1 times [2020-10-19 20:11:15,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:15,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588985312] [2020-10-19 20:11:15,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:15,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:15,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:15,926 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:15,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:15,927 INFO L82 PathProgramCache]: Analyzing trace with hash 363737516, now seen corresponding path program 1 times [2020-10-19 20:11:15,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:15,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203544848] [2020-10-19 20:11:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:15,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203544848] [2020-10-19 20:11:15,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:15,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:15,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581558598] [2020-10-19 20:11:15,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:15,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:15,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:15,988 INFO L87 Difference]: Start difference. First operand 9301 states and 15639 transitions. cyclomatic complexity: 6359 Second operand 3 states. [2020-10-19 20:11:16,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:16,090 INFO L93 Difference]: Finished difference Result 14826 states and 24682 transitions. [2020-10-19 20:11:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:16,091 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14826 states and 24682 transitions. [2020-10-19 20:11:16,168 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4004 [2020-10-19 20:11:16,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14826 states to 14826 states and 24682 transitions. [2020-10-19 20:11:16,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4615 [2020-10-19 20:11:16,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4615 [2020-10-19 20:11:16,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14826 states and 24682 transitions. [2020-10-19 20:11:16,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:16,237 INFO L691 BuchiCegarLoop]: Abstraction has 14826 states and 24682 transitions. [2020-10-19 20:11:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14826 states and 24682 transitions. [2020-10-19 20:11:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14826 to 14826. [2020-10-19 20:11:16,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14826 states. [2020-10-19 20:11:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14826 states to 14826 states and 24682 transitions. [2020-10-19 20:11:16,431 INFO L714 BuchiCegarLoop]: Abstraction has 14826 states and 24682 transitions. [2020-10-19 20:11:16,431 INFO L594 BuchiCegarLoop]: Abstraction has 14826 states and 24682 transitions. [2020-10-19 20:11:16,431 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-10-19 20:11:16,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14826 states and 24682 transitions. [2020-10-19 20:11:16,479 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4004 [2020-10-19 20:11:16,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:16,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:16,480 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, 1, 1, 1] [2020-10-19 20:11:16,480 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:16,481 INFO L794 eck$LassoCheckResult]: Stem: 92930#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 92720#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 92721#L400 assume !(1 == ~c_req_up~0); 92793#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 92794#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 92834#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 92903#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 92904#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 92680#L431-1 assume !(0 == ~e_f~0); 92681#L436-1 assume !(0 == ~e_g~0); 92761#L441-1 assume !(0 == ~e_e~0); 92889#L446-1 assume !(0 == ~e_c~0); 92890#L451-1 assume !(0 == ~e_wl~0); 92983#L456-1 assume !(1 == ~wl_pc~0); 92978#L468 assume !(2 == ~wl_pc~0); 92976#L469 assume !(1 == ~c1_pc~0); 92972#L479 assume !(1 == ~c2_pc~0); 92969#L488 assume !(1 == ~wb_pc~0); 92727#L497 assume !(1 == ~e_c~0); 92728#L506-1 assume !(1 == ~e_e~0); 92992#L511-1 assume !(1 == ~e_f~0); 92991#L516-1 assume !(1 == ~e_g~0); 92818#L521-1 assume !(1 == ~e_c~0); 92819#L526-1 assume !(1 == ~e_wl~0); 92882#L668-1 assume !false; 93672#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 93673#L373 [2020-10-19 20:11:16,481 INFO L796 eck$LassoCheckResult]: Loop: 93673#L373 assume !false; 103306#L291 assume 0 == ~wl_st~0; 103305#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 103304#L317 assume !(0 != eval_~tmp~0); 103303#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 103294#L332 assume !(0 != eval_~tmp___0~0); 103302#L328 assume !(0 == ~c2_st~0); 103319#L343 assume !(0 == ~wb_st~0); 103316#L358 assume !(0 == ~r_st~0); 93673#L373 [2020-10-19 20:11:16,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:16,482 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 2 times [2020-10-19 20:11:16,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:16,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493424342] [2020-10-19 20:11:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:16,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:16,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:16,503 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:16,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:16,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1057974720, now seen corresponding path program 1 times [2020-10-19 20:11:16,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:16,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054528896] [2020-10-19 20:11:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:16,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:16,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:16,511 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:16,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:16,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1659811128, now seen corresponding path program 1 times [2020-10-19 20:11:16,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:16,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115087113] [2020-10-19 20:11:16,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:16,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115087113] [2020-10-19 20:11:16,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:16,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:16,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754645196] [2020-10-19 20:11:16,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:16,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:16,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:16,567 INFO L87 Difference]: Start difference. First operand 14826 states and 24682 transitions. cyclomatic complexity: 9877 Second operand 3 states. [2020-10-19 20:11:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:16,667 INFO L93 Difference]: Finished difference Result 23728 states and 38921 transitions. [2020-10-19 20:11:16,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:16,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23728 states and 38921 transitions. [2020-10-19 20:11:16,955 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-10-19 20:11:17,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23728 states to 23728 states and 38921 transitions. [2020-10-19 20:11:17,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7458 [2020-10-19 20:11:17,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7458 [2020-10-19 20:11:17,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23728 states and 38921 transitions. [2020-10-19 20:11:17,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:17,062 INFO L691 BuchiCegarLoop]: Abstraction has 23728 states and 38921 transitions. [2020-10-19 20:11:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23728 states and 38921 transitions. [2020-10-19 20:11:17,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23728 to 23728. [2020-10-19 20:11:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23728 states. [2020-10-19 20:11:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23728 states to 23728 states and 38921 transitions. [2020-10-19 20:11:17,350 INFO L714 BuchiCegarLoop]: Abstraction has 23728 states and 38921 transitions. [2020-10-19 20:11:17,350 INFO L594 BuchiCegarLoop]: Abstraction has 23728 states and 38921 transitions. [2020-10-19 20:11:17,350 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-10-19 20:11:17,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23728 states and 38921 transitions. [2020-10-19 20:11:17,411 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-10-19 20:11:17,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:17,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:17,412 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, 1, 1, 1] [2020-10-19 20:11:17,412 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:17,413 INFO L794 eck$LassoCheckResult]: Stem: 131519#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 131282#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 131283#L400 assume !(1 == ~c_req_up~0); 131397#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 131401#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 131402#L416-1 assume !(1 == ~c2_i~0);~c2_st~0 := 2; 131582#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 136726#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 136725#L431-1 assume !(0 == ~e_f~0); 136724#L436-1 assume !(0 == ~e_g~0); 136723#L441-1 assume !(0 == ~e_e~0); 136722#L446-1 assume !(0 == ~e_c~0); 136721#L451-1 assume !(0 == ~e_wl~0); 136720#L456-1 assume !(1 == ~wl_pc~0); 131573#L468 assume !(2 == ~wl_pc~0); 131571#L469 assume !(1 == ~c1_pc~0); 131567#L479 assume !(1 == ~c2_pc~0); 131564#L488 assume !(1 == ~wb_pc~0); 131288#L497 assume !(1 == ~e_c~0); 131289#L506-1 assume !(1 == ~e_e~0); 131587#L511-1 assume !(1 == ~e_f~0); 131586#L516-1 assume !(1 == ~e_g~0); 131386#L521-1 assume !(1 == ~e_c~0); 131387#L526-1 assume !(1 == ~e_wl~0); 131459#L668-1 assume !false; 132258#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 132259#L373 [2020-10-19 20:11:17,413 INFO L796 eck$LassoCheckResult]: Loop: 132259#L373 assume !false; 151422#L291 assume 0 == ~wl_st~0; 151421#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 151418#L317 assume !(0 != eval_~tmp~0); 145391#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 145388#L332 assume !(0 != eval_~tmp___0~0); 145389#L328 assume !(0 == ~c2_st~0); 151433#L343 assume !(0 == ~wb_st~0); 151427#L358 assume !(0 == ~r_st~0); 132259#L373 [2020-10-19 20:11:17,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:17,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1246052603, now seen corresponding path program 1 times [2020-10-19 20:11:17,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:17,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122102916] [2020-10-19 20:11:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:17,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:17,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122102916] [2020-10-19 20:11:17,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:17,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:17,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444246027] [2020-10-19 20:11:17,429 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:11:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:17,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1057974720, now seen corresponding path program 2 times [2020-10-19 20:11:17,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:17,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654424444] [2020-10-19 20:11:17,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:17,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:17,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:17,435 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:17,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:17,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:17,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:17,464 INFO L87 Difference]: Start difference. First operand 23728 states and 38921 transitions. cyclomatic complexity: 15214 Second operand 3 states. [2020-10-19 20:11:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:17,533 INFO L93 Difference]: Finished difference Result 23657 states and 38802 transitions. [2020-10-19 20:11:17,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:17,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23657 states and 38802 transitions. [2020-10-19 20:11:17,635 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-10-19 20:11:17,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23657 states to 23657 states and 38802 transitions. [2020-10-19 20:11:17,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7391 [2020-10-19 20:11:17,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7391 [2020-10-19 20:11:17,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23657 states and 38802 transitions. [2020-10-19 20:11:17,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:17,730 INFO L691 BuchiCegarLoop]: Abstraction has 23657 states and 38802 transitions. [2020-10-19 20:11:17,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23657 states and 38802 transitions. [2020-10-19 20:11:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23657 to 23657. [2020-10-19 20:11:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23657 states. [2020-10-19 20:11:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23657 states to 23657 states and 38802 transitions. [2020-10-19 20:11:17,989 INFO L714 BuchiCegarLoop]: Abstraction has 23657 states and 38802 transitions. [2020-10-19 20:11:17,989 INFO L594 BuchiCegarLoop]: Abstraction has 23657 states and 38802 transitions. [2020-10-19 20:11:17,990 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-10-19 20:11:17,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23657 states and 38802 transitions. [2020-10-19 20:11:18,055 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6280 [2020-10-19 20:11:18,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:18,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:18,056 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, 1, 1, 1] [2020-10-19 20:11:18,056 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:18,057 INFO L794 eck$LassoCheckResult]: Stem: 178891#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 178673#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 178674#L400 assume !(1 == ~c_req_up~0); 178754#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 178755#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 178789#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 178847#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 178865#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 178633#L431-1 assume !(0 == ~e_f~0); 178634#L436-1 assume !(0 == ~e_g~0); 178719#L441-1 assume !(0 == ~e_e~0); 178939#L446-1 assume !(0 == ~e_c~0); 178938#L451-1 assume !(0 == ~e_wl~0); 178936#L456-1 assume !(1 == ~wl_pc~0); 178931#L468 assume !(2 == ~wl_pc~0); 178929#L469 assume !(1 == ~c1_pc~0); 178926#L479 assume !(1 == ~c2_pc~0); 178923#L488 assume !(1 == ~wb_pc~0); 178679#L497 assume !(1 == ~e_c~0); 178680#L506-1 assume !(1 == ~e_e~0); 178950#L511-1 assume !(1 == ~e_f~0); 178949#L516-1 assume !(1 == ~e_g~0); 178777#L521-1 assume !(1 == ~e_c~0); 178778#L526-1 assume !(1 == ~e_wl~0); 182464#L668-1 assume !false; 179645#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 179646#L373 [2020-10-19 20:11:18,057 INFO L796 eck$LassoCheckResult]: Loop: 179646#L373 assume !false; 192302#L291 assume 0 == ~wl_st~0; 192299#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 192297#L317 assume !(0 != eval_~tmp~0); 192298#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 192407#L332 assume !(0 != eval_~tmp___0~0); 192515#L328 assume 0 == ~c2_st~0;eval_~tmp___1~0 := eval_#t~nondet9;havoc eval_#t~nondet9; 192506#L347 assume !(0 != eval_~tmp___1~0); 192313#L343 assume !(0 == ~wb_st~0); 192309#L358 assume !(0 == ~r_st~0); 179646#L373 [2020-10-19 20:11:18,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:18,057 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 3 times [2020-10-19 20:11:18,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:18,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464975916] [2020-10-19 20:11:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:18,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:18,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:18,075 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:18,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:18,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1564142017, now seen corresponding path program 1 times [2020-10-19 20:11:18,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:18,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514704572] [2020-10-19 20:11:18,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:18,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:18,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:18,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:18,083 INFO L82 PathProgramCache]: Analyzing trace with hash 83842615, now seen corresponding path program 1 times [2020-10-19 20:11:18,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:18,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445687193] [2020-10-19 20:11:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:11:18,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:11:18,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445687193] [2020-10-19 20:11:18,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:11:18,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:11:18,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615023327] [2020-10-19 20:11:18,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:11:18,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 20:11:18,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 20:11:18,152 INFO L87 Difference]: Start difference. First operand 23657 states and 38802 transitions. cyclomatic complexity: 15166 Second operand 3 states. [2020-10-19 20:11:18,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:11:18,275 INFO L93 Difference]: Finished difference Result 39861 states and 64279 transitions. [2020-10-19 20:11:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 20:11:18,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39861 states and 64279 transitions. [2020-10-19 20:11:18,418 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10688 [2020-10-19 20:11:18,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39861 states to 39861 states and 64279 transitions. [2020-10-19 20:11:18,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12447 [2020-10-19 20:11:18,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12447 [2020-10-19 20:11:18,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39861 states and 64279 transitions. [2020-10-19 20:11:18,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:11:18,839 INFO L691 BuchiCegarLoop]: Abstraction has 39861 states and 64279 transitions. [2020-10-19 20:11:18,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39861 states and 64279 transitions. [2020-10-19 20:11:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39861 to 39861. [2020-10-19 20:11:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39861 states. [2020-10-19 20:11:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39861 states to 39861 states and 64279 transitions. [2020-10-19 20:11:19,296 INFO L714 BuchiCegarLoop]: Abstraction has 39861 states and 64279 transitions. [2020-10-19 20:11:19,296 INFO L594 BuchiCegarLoop]: Abstraction has 39861 states and 64279 transitions. [2020-10-19 20:11:19,296 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-10-19 20:11:19,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39861 states and 64279 transitions. [2020-10-19 20:11:19,407 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10688 [2020-10-19 20:11:19,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:11:19,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:11:19,409 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, 1, 1, 1] [2020-10-19 20:11:19,409 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:11:19,409 INFO L794 eck$LassoCheckResult]: Stem: 242436#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(10);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 242195#L-1 havoc main_#res;havoc main_~__retres1~0;havoc main_~__retres1~0;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;havoc start_simulation_~kernel_st~0;havoc start_simulation_~kernel_st~0;start_simulation_~kernel_st~0 := 0; 242196#L400 assume !(1 == ~c_req_up~0); 242275#L400-2 assume 1 == ~wl_i~0;~wl_st~0 := 0; 242276#L411-1 assume 1 == ~c1_i~0;~c1_st~0 := 0; 242320#L416-1 assume 1 == ~c2_i~0;~c2_st~0 := 0; 242401#L421-1 assume 1 == ~wb_i~0;~wb_st~0 := 0; 242402#L426-1 assume !(1 == ~r_i~0);~r_st~0 := 2; 242157#L431-1 assume !(0 == ~e_f~0); 242158#L436-1 assume !(0 == ~e_g~0); 242241#L441-1 assume !(0 == ~e_e~0); 242383#L446-1 assume !(0 == ~e_c~0); 242384#L451-1 assume !(0 == ~e_wl~0); 242498#L456-1 assume !(1 == ~wl_pc~0); 242493#L468 assume !(2 == ~wl_pc~0); 242491#L469 assume !(1 == ~c1_pc~0); 242487#L479 assume !(1 == ~c2_pc~0); 242484#L488 assume !(1 == ~wb_pc~0); 242201#L497 assume !(1 == ~e_c~0); 242202#L506-1 assume !(1 == ~e_e~0); 242507#L511-1 assume !(1 == ~e_f~0); 242506#L516-1 assume !(1 == ~e_g~0); 242302#L521-1 assume !(1 == ~e_c~0); 242303#L526-1 assume !(1 == ~e_wl~0); 242375#L668-1 assume !false; 244932#L538 start_simulation_~kernel_st~0 := 1;havoc eval_#t~nondet7, eval_#t~nondet8, eval_#t~nondet9, eval_#t~nondet10, eval_#t~nondet11, eval_~tmp~0, eval_~tmp___0~0, eval_~tmp___1~0, eval_~tmp___2~0, eval_~tmp___3~0;havoc eval_~tmp~0;havoc eval_~tmp___0~0;havoc eval_~tmp___1~0;havoc eval_~tmp___2~0;havoc eval_~tmp___3~0; 244933#L373 [2020-10-19 20:11:19,409 INFO L796 eck$LassoCheckResult]: Loop: 244933#L373 assume !false; 267372#L291 assume 0 == ~wl_st~0; 267369#L304-1 assume 0 == ~wl_st~0;eval_~tmp~0 := eval_#t~nondet7;havoc eval_#t~nondet7; 267168#L317 assume !(0 != eval_~tmp~0); 267131#L313 assume 0 == ~c1_st~0;eval_~tmp___0~0 := eval_#t~nondet8;havoc eval_#t~nondet8; 267129#L332 assume !(0 != eval_~tmp___0~0); 266854#L328 assume 0 == ~c2_st~0;eval_~tmp___1~0 := eval_#t~nondet9;havoc eval_#t~nondet9; 266851#L347 assume !(0 != eval_~tmp___1~0); 266848#L343 assume 0 == ~wb_st~0;eval_~tmp___2~0 := eval_#t~nondet10;havoc eval_#t~nondet10; 266834#L362 assume !(0 != eval_~tmp___2~0); 266847#L358 assume !(0 == ~r_st~0); 244933#L373 [2020-10-19 20:11:19,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:19,410 INFO L82 PathProgramCache]: Analyzing trace with hash 823350777, now seen corresponding path program 4 times [2020-10-19 20:11:19,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:19,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346126773] [2020-10-19 20:11:19,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:19,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:19,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:19,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:19,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:19,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1243796683, now seen corresponding path program 1 times [2020-10-19 20:11:19,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:19,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188100076] [2020-10-19 20:11:19,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:19,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:19,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:19,448 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:11:19,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1695880643, now seen corresponding path program 1 times [2020-10-19 20:11:19,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:11:19,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730974644] [2020-10-19 20:11:19,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:11:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:19,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:11:19,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:11:19,473 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:11:20,253 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 157 [2020-10-19 20:11:20,442 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-19 20:11:20,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:11:20 BoogieIcfgContainer [2020-10-19 20:11:20,493 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:11:20,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:11:20,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:11:20,494 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:11:20,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:11:04" (3/4) ... [2020-10-19 20:11:20,498 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-19 20:11:20,579 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 20:11:20,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:11:20,581 INFO L168 Benchmark]: Toolchain (without parser) took 17360.73 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 645.9 MB). Free memory was 955.9 MB in the beginning and 977.5 MB in the end (delta: -21.6 MB). Peak memory consumption was 624.4 MB. Max. memory is 11.5 GB. [2020-10-19 20:11:20,581 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:11:20,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-10-19 20:11:20,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:11:20,582 INFO L168 Benchmark]: Boogie Preprocessor took 46.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 20:11:20,582 INFO L168 Benchmark]: RCFGBuilder took 706.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. [2020-10-19 20:11:20,582 INFO L168 Benchmark]: BuchiAutomizer took 15999.01 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 513.3 MB). Free memory was 1.1 GB in the beginning and 977.5 MB in the end (delta: 88.0 MB). Peak memory consumption was 601.3 MB. Max. memory is 11.5 GB. [2020-10-19 20:11:20,583 INFO L168 Benchmark]: Witness Printer took 86.58 ms. Allocated memory is still 1.7 GB. Free memory is still 977.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:11:20,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 462.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 706.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15999.01 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 513.3 MB). Free memory was 1.1 GB in the beginning and 977.5 MB in the end (delta: 88.0 MB). Peak memory consumption was 601.3 MB. Max. memory is 11.5 GB. * Witness Printer took 86.58 ms. Allocated memory is still 1.7 GB. Free memory is still 977.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 21 terminating modules (16 trivial, 5 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * e_c + 1 and consists of 3 locations. One deterministic module has affine ranking function -2 * e_c + 3 and consists of 4 locations. One deterministic module has affine ranking function -1 * e_f + 1 and consists of 3 locations. One deterministic module has affine ranking function -1 * e_wl + 1 and consists of 3 locations. One deterministic module has affine ranking function -1 * e_g + 1 and consists of 3 locations. 16 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 39861 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.9s and 17 iterations. TraceHistogramMax:1. Analysis of lassos took 9.2s. Construction of modules took 0.5s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 16. Automata minimization 1.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 3137 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 1.7s Buchi closure took 0.0s. Biggest automaton had 39861 states and ocurred in iteration 16. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5367 SDtfs, 5113 SDslu, 3633 SDs, 0 SdLazy, 444 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc3 concLT1 SILN1 SILU0 SILI5 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital80 mio100 ax100 hnf100 lsp11 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf97 smp100 dnf186 smp77 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 27 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 290]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {wb_st=0, NULL=0, NULL=1, c2_st=0, tmp=0, e_c=2, e_e=2, e_p_in=0, kernel_st=1, t_b=0, tmp___2=0, wb_pc=0, tmp___0=0, wb_i=1, c_t=0, NULL=0, NULL=0, c=0, wl_st=0, c2_pc=0, r_i=0, e_f=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@577360c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39b239af=0, NULL=0, r_st=2, __retres1=0, p_out=0, NULL=2, processed=0, \result=0, wl_pc=0, e_wl=2, tmp___1=0, data=0, p_in=0, tmp___3=0, c_req_up=0, NULL=4, wl_i=1, NULL=0, c1_st=0, NULL=3, c1_i=1, c2_i=1, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51886855=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ae44c7c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@88cc465=0, e_g=2, c1_pc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 290]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L20] int c ; [L21] int c_t ; [L22] int c_req_up ; [L23] int p_in ; [L24] int p_out ; [L25] int wl_st ; [L26] int c1_st ; [L27] int c2_st ; [L28] int wb_st ; [L29] int r_st ; [L30] int wl_i ; [L31] int c1_i ; [L32] int c2_i ; [L33] int wb_i ; [L34] int r_i ; [L35] int wl_pc ; [L36] int c1_pc ; [L37] int c2_pc ; [L38] int wb_pc ; [L39] int e_e ; [L40] int e_f ; [L41] int e_g ; [L42] int e_c ; [L43] int e_p_in ; [L44] int e_wl ; [L50] int d ; [L51] int data ; [L52] int processed ; [L53] static int t_b ; [L685] int __retres1 ; [L689] e_wl = 2 [L690] e_c = e_wl [L691] e_g = e_c [L692] e_f = e_g [L693] e_e = e_f [L694] wl_pc = 0 [L695] c1_pc = 0 [L696] c2_pc = 0 [L697] wb_pc = 0 [L698] wb_i = 1 [L699] c2_i = wb_i [L700] c1_i = c2_i [L701] wl_i = c1_i [L702] r_i = 0 [L703] c_req_up = 0 [L704] d = 0 [L705] c = 0 [L396] int kernel_st ; [L399] kernel_st = 0 [L400] COND FALSE !((int )c_req_up == 1) [L411] COND TRUE (int )wl_i == 1 [L412] wl_st = 0 [L416] COND TRUE (int )c1_i == 1 [L417] c1_st = 0 [L421] COND TRUE (int )c2_i == 1 [L422] c2_st = 0 [L426] COND TRUE (int )wb_i == 1 [L427] wb_st = 0 [L431] COND FALSE !((int )r_i == 1) [L434] r_st = 2 [L436] COND FALSE !((int )e_f == 0) [L441] COND FALSE !((int )e_g == 0) [L446] COND FALSE !((int )e_e == 0) [L451] COND FALSE !((int )e_c == 0) [L456] COND FALSE !((int )e_wl == 0) [L461] COND FALSE !((int )wl_pc == 1) [L469] COND FALSE !((int )wl_pc == 2) [L479] COND FALSE !((int )c1_pc == 1) [L488] COND FALSE !((int )c2_pc == 1) [L497] COND FALSE !((int )wb_pc == 1) [L506] COND FALSE !((int )e_c == 1) [L511] COND FALSE !((int )e_e == 1) [L516] COND FALSE !((int )e_f == 1) [L521] COND FALSE !((int )e_g == 1) [L526] COND FALSE !((int )e_c == 1) [L531] COND FALSE !((int )e_wl == 1) [L537] COND TRUE 1 [L540] kernel_st = 1 [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L286] int tmp___3 ; Loop: [L290] COND TRUE 1 [L292] COND TRUE (int )wl_st == 0 [L313] COND TRUE (int )wl_st == 0 [L315] tmp = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp)) [L328] COND TRUE (int )c1_st == 0 [L330] tmp___0 = __VERIFIER_nondet_int() [L332] COND FALSE !(\read(tmp___0)) [L343] COND TRUE (int )c2_st == 0 [L345] tmp___1 = __VERIFIER_nondet_int() [L347] COND FALSE !(\read(tmp___1)) [L358] COND TRUE (int )wb_st == 0 [L360] tmp___2 = __VERIFIER_nondet_int() [L362] COND FALSE !(\read(tmp___2)) [L373] COND FALSE !((int )r_st == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...