./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/PastaB15.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3ccb58682df62cf013193e768e6367e3efc261e2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:35:56,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:35:56,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:35:56,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:35:56,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:35:56,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:35:56,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:35:56,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:35:56,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:35:56,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:35:56,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:35:56,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:35:56,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:35:56,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:35:56,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:35:56,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:35:56,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:35:56,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:35:56,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:35:56,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:35:56,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:35:56,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:35:56,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:35:56,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:35:56,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:35:56,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:35:56,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:35:56,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:35:56,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:35:56,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:35:56,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:35:56,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:35:56,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:35:56,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:35:56,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:35:56,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:35:56,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:35:56,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:35:56,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:35:56,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:35:56,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:35:56,854 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:35:56,878 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:35:56,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:35:56,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:35:56,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:35:56,880 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:35:56,880 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:35:56,880 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:35:56,881 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:35:56,881 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:35:56,881 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:35:56,881 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:35:56,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:35:56,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:35:56,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:35:56,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:35:56,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:35:56,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:35:56,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:35:56,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:35:56,884 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:35:56,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:35:56,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:35:56,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:35:56,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:35:56,885 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:35:56,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:35:56,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:35:56,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:35:56,886 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:35:56,887 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:35:56,887 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ccb58682df62cf013193e768e6367e3efc261e2 [2020-10-20 06:35:57,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:35:57,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:35:57,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:35:57,116 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:35:57,117 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:35:57,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB15.c [2020-10-20 06:35:57,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6255907/cfca93d1705144b8bc72756b3b80020d/FLAGb3cd06d07 [2020-10-20 06:35:57,707 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:35:57,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB15.c [2020-10-20 06:35:57,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6255907/cfca93d1705144b8bc72756b3b80020d/FLAGb3cd06d07 [2020-10-20 06:35:58,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6255907/cfca93d1705144b8bc72756b3b80020d [2020-10-20 06:35:58,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:35:58,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:35:58,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:58,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:35:58,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:35:58,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53565ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58, skipping insertion in model container [2020-10-20 06:35:58,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:35:58,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:35:58,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:58,291 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:35:58,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:35:58,316 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:35:58,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58 WrapperNode [2020-10-20 06:35:58,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:35:58,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:58,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:35:58,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:35:58,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:35:58,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:35:58,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:35:58,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:35:58,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... [2020-10-20 06:35:58,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:35:58,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:35:58,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:35:58,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:35:58,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:35:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:35:58,581 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:35:58,582 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:35:58,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:58 BoogieIcfgContainer [2020-10-20 06:35:58,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:35:58,584 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:35:58,584 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:35:58,588 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:35:58,589 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:58,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:35:58" (1/3) ... [2020-10-20 06:35:58,590 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b1b7a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:58, skipping insertion in model container [2020-10-20 06:35:58,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:58,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:35:58" (2/3) ... [2020-10-20 06:35:58,591 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b1b7a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:35:58, skipping insertion in model container [2020-10-20 06:35:58,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:35:58,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:58" (3/3) ... [2020-10-20 06:35:58,593 INFO L373 chiAutomizerObserver]: Analyzing ICFG PastaB15.c [2020-10-20 06:35:58,634 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:35:58,634 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:35:58,634 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:35:58,635 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:35:58,635 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:35:58,635 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:35:58,635 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:35:58,635 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:35:58,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-20 06:35:58,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:35:58,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:58,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:58,671 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:58,671 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:35:58,671 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:35:58,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-20 06:35:58,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:35:58,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:58,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:58,673 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:58,673 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:35:58,679 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L14-3true [2020-10-20 06:35:58,679 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 6#L14-2true assume !(main_~y~0 > main_~z~0); 4#L14-3true [2020-10-20 06:35:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:58,684 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:35:58,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:58,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598900302] [2020-10-20 06:35:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:58,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:58,763 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:58,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:58,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:58,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2020-10-20 06:35:58,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:58,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101644986] [2020-10-20 06:35:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:35:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:35:58,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101644986] [2020-10-20 06:35:58,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:35:58,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:35:58,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405312258] [2020-10-20 06:35:58,870 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:35:58,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:35:58,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:35:58,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:35:58,884 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-10-20 06:35:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:35:58,909 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-10-20 06:35:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:35:58,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2020-10-20 06:35:58,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:35:58,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2020-10-20 06:35:58,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-10-20 06:35:58,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-20 06:35:58,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2020-10-20 06:35:58,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:35:58,921 INFO L691 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-10-20 06:35:58,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2020-10-20 06:35:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-10-20 06:35:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:35:58,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2020-10-20 06:35:58,958 INFO L714 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-10-20 06:35:58,959 INFO L594 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2020-10-20 06:35:58,959 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:35:58,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2020-10-20 06:35:58,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:35:58,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:35:58,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:35:58,974 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:35:58,976 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:35:58,976 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 25#L14-3 [2020-10-20 06:35:58,977 INFO L796 eck$LassoCheckResult]: Loop: 25#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 26#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L14-2 assume !(main_~y~0 > main_~z~0); 25#L14-3 [2020-10-20 06:35:58,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:58,979 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2020-10-20 06:35:58,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:58,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508274994] [2020-10-20 06:35:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:58,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:58,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:58,996 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:58,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:58,997 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2020-10-20 06:35:58,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:58,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146624247] [2020-10-20 06:35:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:59,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:59,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:59,023 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:35:59,032 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2020-10-20 06:35:59,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:35:59,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377880682] [2020-10-20 06:35:59,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:35:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:59,053 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:35:59,068 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:35:59,070 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:35:59,165 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:59,165 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:59,166 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:59,166 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:59,166 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:35:59,167 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:59,167 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:59,167 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:59,167 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2020-10-20 06:35:59,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:59,168 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:59,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:59,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:59,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:59,322 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:59,322 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) [2020-10-20 06:35:59,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:59,342 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 [2020-10-20 06:35:59,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:59,352 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:35:59,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:59,394 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 [2020-10-20 06:35:59,399 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:35:59,400 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:35:59,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:35:59,443 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) [2020-10-20 06:35:59,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:35:59,492 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 [2020-10-20 06:35:59,871 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:35:59,875 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:35:59,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:35:59,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:35:59,875 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:35:59,875 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:35:59,875 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:59,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:35:59,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:35:59,876 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2020-10-20 06:35:59,876 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:35:59,876 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:35:59,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:59,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:59,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:35:59,980 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:35:59,986 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:35:59,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:35:59,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:35:59,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:00,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:00,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:00,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:00,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:36:00,010 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:00,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:00,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:00,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:00,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:00,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:00,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:36:00,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:00,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:00,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:00,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:00,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:00,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:00,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:00,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:36:00,103 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:36:00,115 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 06:36:00,115 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:36:00,129 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:36:00,129 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:36:00,129 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:36:00,130 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-10-20 06:36:00,154 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:36:00,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:00,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:36:00,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:00,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:36:00,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:36:00,310 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 [2020-10-20 06:36:00,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2020-10-20 06:36:00,369 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2020-10-20 06:36:00,372 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 [2020-10-20 06:36:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:36:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-10-20 06:36:00,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2020-10-20 06:36:00,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:00,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-20 06:36:00,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:00,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2020-10-20 06:36:00,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:00,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2020-10-20 06:36:00,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:00,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2020-10-20 06:36:00,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-20 06:36:00,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-20 06:36:00,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-10-20 06:36:00,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:36:00,382 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-10-20 06:36:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-10-20 06:36:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-10-20 06:36:00,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:36:00,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-10-20 06:36:00,384 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:36:00,384 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:36:00,385 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:36:00,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-10-20 06:36:00,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:00,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:00,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:00,386 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2020-10-20 06:36:00,386 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:36:00,387 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 77#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 78#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 81#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L14-2 [2020-10-20 06:36:00,387 INFO L796 eck$LassoCheckResult]: Loop: 80#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L14-2 [2020-10-20 06:36:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:00,387 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2020-10-20 06:36:00,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:00,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994639940] [2020-10-20 06:36:00,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,407 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:00,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:00,408 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-20 06:36:00,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:00,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704655130] [2020-10-20 06:36:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,417 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:00,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:00,418 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2020-10-20 06:36:00,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:00,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092077369] [2020-10-20 06:36:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:00,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:00,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:00,455 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:00,455 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:00,455 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:00,455 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:00,455 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:36:00,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:00,456 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:00,456 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration3_Loop [2020-10-20 06:36:00,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:00,456 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:00,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:00,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:00,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:00,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:00,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:00,530 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) [2020-10-20 06:36:00,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:00,544 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 [2020-10-20 06:36:00,552 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:00,552 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:00,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:00,596 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 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) [2020-10-20 06:36:00,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:36:00,639 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 [2020-10-20 06:36:00,654 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:00,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-3}, {ULTIMATE.start_main_~x~0=7}, {ULTIMATE.start_main_~x~0=-5}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:00,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:00,710 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:00,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:00,749 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:36:00,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:00,958 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:36:00,960 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:00,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:00,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:00,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:00,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:36:00,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:00,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:00,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:00,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration3_Loop [2020-10-20 06:36:00,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:00,961 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:00,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:00,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:00,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:00,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:01,025 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:01,026 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:01,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:01,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:01,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:01,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:01,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:01,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:36:01,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:01,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:01,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:01,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:01,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:01,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:01,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:01,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:36:01,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:01,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:01,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:01,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:01,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:01,117 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:01,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:36:01,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:36:01,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:01,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:01,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:01,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:01,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:01,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:01,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:36:01,166 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:36:01,169 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:36:01,169 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:01,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:36:01,173 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:36:01,173 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:36:01,173 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-10-20 06:36:01,203 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:36:01,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:01,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:36:01,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:01,230 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:36:01,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:36:01,231 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-20 06:36:01,232 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-20 06:36:01,242 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2020-10-20 06:36:01,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:36:01,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:36:01,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-10-20 06:36:01,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-20 06:36:01,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:01,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-20 06:36:01,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:01,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-20 06:36:01,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:01,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2020-10-20 06:36:01,246 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:01,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-10-20 06:36:01,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:36:01,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:36:01,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:36:01,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:36:01,247 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:01,247 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:01,247 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:01,247 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:36:01,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:36:01,247 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:01,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:36:01,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:36:01 BoogieIcfgContainer [2020-10-20 06:36:01,255 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:36:01,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:36:01,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:36:01,256 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:36:01,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:35:58" (3/4) ... [2020-10-20 06:36:01,260 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:36:01,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:36:01,263 INFO L168 Benchmark]: Toolchain (without parser) took 3171.96 ms. Allocated memory was 39.3 MB in the beginning and 47.7 MB in the end (delta: 8.4 MB). Free memory was 17.8 MB in the beginning and 16.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,264 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 30.9 MB. Free memory was 7.1 MB in the beginning and 7.0 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.80 ms. Allocated memory was 39.3 MB in the beginning and 40.4 MB in the end (delta: 1.0 MB). Free memory was 17.0 MB in the beginning and 19.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.25 ms. Allocated memory is still 40.4 MB. Free memory was 19.1 MB in the beginning and 17.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,267 INFO L168 Benchmark]: Boogie Preprocessor took 18.80 ms. Allocated memory is still 40.4 MB. Free memory was 17.5 MB in the beginning and 16.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,269 INFO L168 Benchmark]: RCFGBuilder took 218.40 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 16.4 MB in the beginning and 22.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,270 INFO L168 Benchmark]: BuchiAutomizer took 2670.97 ms. Allocated memory was 41.4 MB in the beginning and 47.7 MB in the end (delta: 6.3 MB). Free memory was 22.0 MB in the beginning and 17.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,271 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 47.7 MB. Free memory was 17.0 MB in the beginning and 16.6 MB in the end (delta: 404.6 kB). Peak memory consumption was 404.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:01,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 30.9 MB. Free memory was 7.1 MB in the beginning and 7.0 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 220.80 ms. Allocated memory was 39.3 MB in the beginning and 40.4 MB in the end (delta: 1.0 MB). Free memory was 17.0 MB in the beginning and 19.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 28.25 ms. Allocated memory is still 40.4 MB. Free memory was 19.1 MB in the beginning and 17.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 18.80 ms. Allocated memory is still 40.4 MB. Free memory was 17.5 MB in the beginning and 16.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 218.40 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 16.4 MB in the beginning and 22.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 2670.97 ms. Allocated memory was 41.4 MB in the beginning and 47.7 MB in the end (delta: 6.3 MB). Free memory was 22.0 MB in the beginning and 17.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * Witness Printer took 5.14 ms. Allocated memory is still 47.7 MB. Free memory was 17.0 MB in the beginning and 16.6 MB in the end (delta: 404.6 kB). Peak memory consumption was 404.6 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 3 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...