./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i -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 347059d6406aa1ba26314e4f378fb38f7ea56c61 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:45:01,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:45:01,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:45:01,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:45:01,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:45:01,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:45:01,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:45:01,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:45:01,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:45:01,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:45:01,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:45:01,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:45:01,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:45:01,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:45:01,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:45:01,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:45:01,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:45:01,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:45:01,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:45:01,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:45:01,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:45:01,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:45:01,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:45:01,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:45:01,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:45:01,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:45:01,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:45:01,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:45:01,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:45:01,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:45:01,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:45:01,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:45:01,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:45:01,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:45:01,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:45:01,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:45:01,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:45:01,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:45:01,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:45:01,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:45:01,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:45:01,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 06:45:01,937 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:45:01,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:45:01,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:45:01,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:45:01,939 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:45:01,939 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:45:01,939 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:45:01,939 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:45:01,939 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:45:01,939 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:45:01,940 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:45:01,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:45:01,940 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:45:01,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:45:01,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:45:01,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:45:01,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:45:01,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:45:01,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:45:01,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:45:01,941 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:45:01,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:45:01,942 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:45:01,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:45:01,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:45:01,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:45:01,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:45:01,944 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:45:01,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:45:01,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:45:01,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:45:01,945 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:45:01,945 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:45:01,946 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 -> 347059d6406aa1ba26314e4f378fb38f7ea56c61 [2020-10-20 06:45:02,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:45:02,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:45:02,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:45:02,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:45:02,163 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:45:02,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2020-10-20 06:45:02,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299805579/de7850e8fc73442baf29bbcc7325dbc6/FLAG94869eca5 [2020-10-20 06:45:02,750 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:45:02,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2020-10-20 06:45:02,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299805579/de7850e8fc73442baf29bbcc7325dbc6/FLAG94869eca5 [2020-10-20 06:45:03,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299805579/de7850e8fc73442baf29bbcc7325dbc6 [2020-10-20 06:45:03,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:45:03,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:45:03,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:45:03,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:45:03,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:45:03,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482afbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03, skipping insertion in model container [2020-10-20 06:45:03,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:45:03,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:45:03,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:45:03,394 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:45:03,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:45:03,427 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:45:03,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03 WrapperNode [2020-10-20 06:45:03,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:45:03,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:45:03,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:45:03,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:45:03,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:45:03,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:45:03,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:45:03,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:45:03,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (1/1) ... [2020-10-20 06:45:03,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:45:03,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:45:03,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:45:03,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:45:03,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (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 [2020-10-20 06:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:45:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:45:03,790 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:45:03,791 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 06:45:03,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:45:03 BoogieIcfgContainer [2020-10-20 06:45:03,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:45:03,795 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:45:03,796 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:45:03,801 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:45:03,802 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:45:03,802 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:45:03" (1/3) ... [2020-10-20 06:45:03,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3caa730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:45:03, skipping insertion in model container [2020-10-20 06:45:03,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:45:03,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:45:03" (2/3) ... [2020-10-20 06:45:03,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3caa730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:45:03, skipping insertion in model container [2020-10-20 06:45:03,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:45:03,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:45:03" (3/3) ... [2020-10-20 06:45:03,809 INFO L373 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2020-10-20 06:45:03,869 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:45:03,870 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:45:03,870 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:45:03,870 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:45:03,870 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:45:03,870 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:45:03,871 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:45:03,871 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:45:03,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 06:45:03,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-20 06:45:03,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:03,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:03,963 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 06:45:03,969 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:45:03,969 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:45:03,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 06:45:03,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-20 06:45:03,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:03,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:03,974 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 06:45:03,974 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:45:03,982 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L18true assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 11#L23-2true [2020-10-20 06:45:03,982 INFO L796 eck$LassoCheckResult]: Loop: 11#L23-2true assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 11#L23-2true [2020-10-20 06:45:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:03,989 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-10-20 06:45:03,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:03,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563809470] [2020-10-20 06:45:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:04,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:04,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:04,134 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:04,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:04,136 INFO L82 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2020-10-20 06:45:04,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:04,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023931839] [2020-10-20 06:45:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:04,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:04,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:04,159 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:04,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:04,161 INFO L82 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2020-10-20 06:45:04,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:04,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069367543] [2020-10-20 06:45:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:04,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:04,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:04,246 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:04,600 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-20 06:45:04,718 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:04,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:04,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:04,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:04,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:45:04,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:04,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:04,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:04,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2020-10-20 06:45:04,722 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:04,722 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:04,746 INFO 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 06:45:04,925 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-10-20 06:45:04,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:04,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:04,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:04,967 INFO 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 06:45:04,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:04,974 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 06:45:05,260 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:05,266 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:05,288 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:05,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:05,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,408 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:05,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:05,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,473 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:05,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,537 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) [2020-10-20 06:45:05,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:05,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:05,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:05,586 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 [2020-10-20 06:45:05,588 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 06:45:05,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:05,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:05,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:05,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:05,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:05,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:05,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:05,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:05,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:05,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:05,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:05,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:05,892 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:45:05,930 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-20 06:45:05,930 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. 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) [2020-10-20 06:45:05,947 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:05,953 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:45:05,954 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:45:05,955 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_main_~i~0) = 1*~N~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-20 06:45:06,026 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2020-10-20 06:45:06,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:06,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:45:06,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:06,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:45:06,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:06,093 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 06:45:06,113 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 06:45:06,115 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 2 states. [2020-10-20 06:45:06,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 2 states. Result 34 states and 45 transitions. Complement of second has 6 states. [2020-10-20 06:45:06,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:45:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:45:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-20 06:45:06,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-20 06:45:06,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:06,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-20 06:45:06,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:06,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-20 06:45:06,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:06,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 45 transitions. [2020-10-20 06:45:06,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:45:06,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 12 states and 16 transitions. [2020-10-20 06:45:06,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-20 06:45:06,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-20 06:45:06,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2020-10-20 06:45:06,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:45:06,205 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-20 06:45:06,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2020-10-20 06:45:06,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-20 06:45:06,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 06:45:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-10-20 06:45:06,241 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-20 06:45:06,241 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-20 06:45:06,241 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:45:06,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-10-20 06:45:06,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:45:06,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:06,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:06,243 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:45:06,243 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:06,244 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 114#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 115#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 119#L23-2 assume !(main_~i~0 < ~N~0); 120#L23-3 main_~i~0 := 0; 117#L29-2 [2020-10-20 06:45:06,244 INFO L796 eck$LassoCheckResult]: Loop: 117#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 123#L13 assume !(0 == __VERIFIER_assert_~cond); 116#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 117#L29-2 [2020-10-20 06:45:06,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:06,245 INFO L82 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2020-10-20 06:45:06,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:06,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379386212] [2020-10-20 06:45:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:06,300 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 06:45:06,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379386212] [2020-10-20 06:45:06,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:45:06,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:45:06,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964163002] [2020-10-20 06:45:06,305 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:45:06,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:06,306 INFO L82 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 1 times [2020-10-20 06:45:06,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:06,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368246799] [2020-10-20 06:45:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,357 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,368 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,374 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:06,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:45:06,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:45:06,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:45:06,475 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-10-20 06:45:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:45:06,496 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2020-10-20 06:45:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:45:06,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2020-10-20 06:45:06,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:45:06,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 10 transitions. [2020-10-20 06:45:06,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-10-20 06:45:06,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-10-20 06:45:06,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2020-10-20 06:45:06,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:45:06,499 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-20 06:45:06,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2020-10-20 06:45:06,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 06:45:06,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 06:45:06,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-10-20 06:45:06,501 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-20 06:45:06,501 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-20 06:45:06,501 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:45:06,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2020-10-20 06:45:06,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:45:06,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:45:06,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:45:06,503 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:45:06,503 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:45:06,503 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(19);~N~0 := 0; 143#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~mem4, main_~i~0, main_~k~0, main_~#a~0.base, main_~#a~0.offset;~N~0 := main_#t~nondet3;havoc main_#t~nondet3; 144#L18 assume ~N~0 > 0;havoc main_~i~0;havoc main_~k~0;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4 * ~N~0);main_~i~0 := 0;main_~k~0 := 0; 147#L23-2 assume !!(main_~i~0 < ~N~0);call write~int(main_~k~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~k~0, 4);main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 148#L23-2 assume !(main_~i~0 < ~N~0); 149#L23-3 main_~i~0 := 0; 146#L29-2 [2020-10-20 06:45:06,503 INFO L796 eck$LassoCheckResult]: Loop: 146#L29-2 assume !!(main_~i~0 < ~N~0);call main_#t~mem4 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem4 == main_~i~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 151#L13 assume !(0 == __VERIFIER_assert_~cond); 145#L13-3 havoc main_#t~mem4;main_~i~0 := 1 + main_~i~0; 146#L29-2 [2020-10-20 06:45:06,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:06,504 INFO L82 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2020-10-20 06:45:06,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:06,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083990408] [2020-10-20 06:45:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:06,538 INFO L82 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 2 times [2020-10-20 06:45:06,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:06,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94135455] [2020-10-20 06:45:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,553 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:06,554 INFO L82 PathProgramCache]: Analyzing trace with hash -450855157, now seen corresponding path program 1 times [2020-10-20 06:45:06,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:45:06,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498855226] [2020-10-20 06:45:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:45:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:45:06,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:45:06,607 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:45:06,978 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-20 06:45:07,087 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:45:07,088 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:45:07,088 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:45:07,088 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:45:07,088 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:45:07,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:07,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:45:07,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:45:07,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2020-10-20 06:45:07,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:45:07,089 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:45:07,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:07,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:07,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:07,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:07,108 INFO 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 06:45:07,269 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-20 06:45:07,294 INFO 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 06:45:07,297 INFO 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 06:45:07,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:45:07,303 INFO 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 06:45:07,583 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:45:07,584 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:07,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:45:07,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:07,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:07,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:07,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:07,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:07,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:07,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:07,600 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:07,647 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 [2020-10-20 06:45:07,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:07,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:07,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:07,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:07,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:07,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:07,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:45:07,652 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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:07,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:07,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:07,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:07,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:07,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:07,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:07,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:07,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 06:45:07,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:07,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:07,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:45:07,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:07,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:07,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:07,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:45:07,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:45:07,739 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 06:45:07,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 06:45:07,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:07,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:07,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:07,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:07,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:07,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:07,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:45:07,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:07,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:45:07,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:45:07,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:45:07,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:45:07,857 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:45:07,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:45:07,874 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:45:07,916 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-20 06:45:07,916 INFO L444 ModelExtractionUtils]: 11 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. 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) [2020-10-20 06:45:07,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:45:07,940 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:45:07,940 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:45:07,941 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ~N~0) = -1*ULTIMATE.start_main_~i~0 + 1*~N~0 Supporting invariants [] [2020-10-20 06:45:08,000 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-10-20 06:45:08,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:45:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:08,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:45:08,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:45:08,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:45:08,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:45:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:45:08,057 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:45:08,058 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-10-20 06:45:08,068 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 12 states and 14 transitions. Complement of second has 4 states. [2020-10-20 06:45:08,069 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 06:45:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:45:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-10-20 06:45:08,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-20 06:45:08,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:08,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-20 06:45:08,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:08,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2020-10-20 06:45:08,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:45:08,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2020-10-20 06:45:08,071 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:45:08,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-10-20 06:45:08,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:45:08,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:45:08,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:45:08,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:45:08,072 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:45:08,072 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:45:08,072 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:45:08,072 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:45:08,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:45:08,080 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:45:08,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:45:08,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:45:08 BoogieIcfgContainer [2020-10-20 06:45:08,091 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:45:08,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:45:08,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:45:08,093 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:45:08,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:45:03" (3/4) ... [2020-10-20 06:45:08,100 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:45:08,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:45:08,108 INFO L168 Benchmark]: Toolchain (without parser) took 5027.23 ms. Allocated memory was 40.4 MB in the beginning and 60.3 MB in the end (delta: 19.9 MB). Free memory was 18.8 MB in the beginning and 40.9 MB in the end (delta: -22.1 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:45:08,109 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 31.5 MB. Free memory was 7.4 MB in the beginning and 7.4 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:45:08,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.53 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 18.0 MB in the beginning and 18.6 MB in the end (delta: -588.6 kB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:08,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 41.4 MB. Free memory was 18.6 MB in the beginning and 16.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:08,114 INFO L168 Benchmark]: Boogie Preprocessor took 23.70 ms. Allocated memory is still 41.4 MB. Free memory was 16.8 MB in the beginning and 15.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:08,115 INFO L168 Benchmark]: RCFGBuilder took 304.26 ms. Allocated memory was 41.4 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). Free memory was 15.5 MB in the beginning and 17.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:08,116 INFO L168 Benchmark]: BuchiAutomizer took 4296.14 ms. Allocated memory was 43.0 MB in the beginning and 60.3 MB in the end (delta: 17.3 MB). Free memory was 17.1 MB in the beginning and 41.5 MB in the end (delta: -24.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:08,117 INFO L168 Benchmark]: Witness Printer took 12.38 ms. Allocated memory is still 60.3 MB. Free memory was 41.5 MB in the beginning and 40.9 MB in the end (delta: 616.7 kB). Peak memory consumption was 616.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:45:08,122 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 31.5 MB. Free memory was 7.4 MB in the beginning and 7.4 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 344.53 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 18.0 MB in the beginning and 18.6 MB in the end (delta: -588.6 kB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 37.15 ms. Allocated memory is still 41.4 MB. Free memory was 18.6 MB in the beginning and 16.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 23.70 ms. Allocated memory is still 41.4 MB. Free memory was 16.8 MB in the beginning and 15.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 304.26 ms. Allocated memory was 41.4 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). Free memory was 15.5 MB in the beginning and 17.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 4.7 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 4296.14 ms. Allocated memory was 43.0 MB in the beginning and 60.3 MB in the end (delta: 17.3 MB). Free memory was 17.1 MB in the beginning and 41.5 MB in the end (delta: -24.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 14.3 GB. * Witness Printer took 12.38 ms. Allocated memory is still 60.3 MB. Free memory was 41.5 MB in the beginning and 40.9 MB in the end (delta: 616.7 kB). Peak memory consumption was 616.7 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 N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * i + N 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 4.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital174 mio100 ax100 hnf99 lsp92 ukn59 mio100 lsp57 div100 bol100 ite100 ukn100 eq163 hnf90 smp97 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...