./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i -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 e9d8db831e66fcf4f47c300fcbd3a74f1185238a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:18:57,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:18:57,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:18:57,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:18:57,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:18:57,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:18:57,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:18:57,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:18:57,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:18:57,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:18:57,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:18:57,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:18:57,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:18:57,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:18:57,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:18:57,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:18:57,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:18:57,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:18:57,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:18:57,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:18:57,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:18:57,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:18:57,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:18:57,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:18:57,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:18:57,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:18:57,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:18:57,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:18:57,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:18:57,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:18:57,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:18:57,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:18:57,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:18:57,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:18:57,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:18:57,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:18:57,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:18:57,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:18:57,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:18:57,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:18:57,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:18:57,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:18:57,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:18:57,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:18:57,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:18:57,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:18:57,984 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:18:57,984 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:18:57,984 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:18:57,984 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:18:57,985 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:18:57,985 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:18:57,986 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:18:57,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:18:57,987 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:18:57,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:18:57,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:18:57,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:18:57,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:18:57,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:18:57,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:18:57,989 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:18:57,989 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:18:57,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:18:57,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:18:57,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:18:57,990 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:18:57,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:18:57,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:18:57,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:18:57,990 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:18:57,992 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:18:57,993 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9d8db831e66fcf4f47c300fcbd3a74f1185238a [2020-10-26 04:18:58,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:18:58,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:18:58,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:18:58,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:18:58,465 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:18:58,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-10-26 04:18:58,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ff4651f/5eb9404b0fc948978b8318f9a08a4873/FLAG2a11e69bf [2020-10-26 04:18:59,145 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:18:59,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-10-26 04:18:59,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ff4651f/5eb9404b0fc948978b8318f9a08a4873/FLAG2a11e69bf [2020-10-26 04:18:59,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ff4651f/5eb9404b0fc948978b8318f9a08a4873 [2020-10-26 04:18:59,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:18:59,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:18:59,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:18:59,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:18:59,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:18:59,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:18:59" (1/1) ... [2020-10-26 04:18:59,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772a33d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:18:59, skipping insertion in model container [2020-10-26 04:18:59,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:18:59" (1/1) ... [2020-10-26 04:18:59,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:18:59,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:18:59,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:18:59,903 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:19:00,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:19:00,072 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:19:00,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00 WrapperNode [2020-10-26 04:19:00,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:19:00,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:19:00,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:19:00,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:19:00,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:19:00,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:19:00,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:19:00,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:19:00,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (1/1) ... [2020-10-26 04:19:00,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:19:00,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:19:00,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:19:00,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:19:00,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (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 [2020-10-26 04:19:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:19:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:19:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:19:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:19:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:19:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:19:00,580 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:19:00,581 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:19:00,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:19:00 BoogieIcfgContainer [2020-10-26 04:19:00,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:19:00,584 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:19:00,584 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:19:00,589 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:19:00,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:19:00,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:18:59" (1/3) ... [2020-10-26 04:19:00,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2d9fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:19:00, skipping insertion in model container [2020-10-26 04:19:00,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:19:00,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:00" (2/3) ... [2020-10-26 04:19:00,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2d9fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:19:00, skipping insertion in model container [2020-10-26 04:19:00,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:19:00,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:19:00" (3/3) ... [2020-10-26 04:19:00,594 INFO L373 chiAutomizerObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-10-26 04:19:00,672 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:19:00,673 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:19:00,673 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:19:00,673 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:19:00,673 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:19:00,673 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:19:00,674 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:19:00,674 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:19:00,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:19:00,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:00,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:00,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:00,754 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:19:00,754 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:00,754 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:19:00,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:19:00,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:00,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:00,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:00,758 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:19:00,758 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:00,767 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 10#L558-2true [2020-10-26 04:19:00,767 INFO L796 eck$LassoCheckResult]: Loop: 10#L558-2true call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 8#L552-1true assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4#L553true assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 9#L553-2true call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 5#L558true assume 0 != main_#t~mem10;havoc main_#t~mem10;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 10#L558-2true [2020-10-26 04:19:00,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:00,780 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-26 04:19:00,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:00,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634991423] [2020-10-26 04:19:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:00,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:00,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:00,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:00,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:00,965 INFO L82 PathProgramCache]: Analyzing trace with hash 35468238, now seen corresponding path program 1 times [2020-10-26 04:19:00,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:00,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630221347] [2020-10-26 04:19:00,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:00,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,017 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,021 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:01,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907724, now seen corresponding path program 1 times [2020-10-26 04:19:01,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:01,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727828729] [2020-10-26 04:19:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:19:01,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727828729] [2020-10-26 04:19:01,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:19:01,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 04:19:01,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917961800] [2020-10-26 04:19:01,329 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-26 04:19:01,495 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-10-26 04:19:01,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:19:01,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:19:01,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:19:01,520 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 5 states. [2020-10-26 04:19:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:19:01,739 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2020-10-26 04:19:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:19:01,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2020-10-26 04:19:01,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:01,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2020-10-26 04:19:01,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-26 04:19:01,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-26 04:19:01,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2020-10-26 04:19:01,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:19:01,750 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-10-26 04:19:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2020-10-26 04:19:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-10-26 04:19:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-26 04:19:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2020-10-26 04:19:01,778 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-10-26 04:19:01,778 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-10-26 04:19:01,778 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:19:01,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2020-10-26 04:19:01,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:01,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:01,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:01,780 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:19:01,780 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:01,780 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 37#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 38#L558-2 [2020-10-26 04:19:01,780 INFO L796 eck$LassoCheckResult]: Loop: 38#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 43#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 39#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 40#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 41#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 38#L558-2 [2020-10-26 04:19:01,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:01,781 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-10-26 04:19:01,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:01,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883410762] [2020-10-26 04:19:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,812 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:01,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:01,813 INFO L82 PathProgramCache]: Analyzing trace with hash 35468240, now seen corresponding path program 1 times [2020-10-26 04:19:01,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:01,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403636966] [2020-10-26 04:19:01,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,861 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:01,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:01,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907726, now seen corresponding path program 1 times [2020-10-26 04:19:01,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:01,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270558627] [2020-10-26 04:19:01,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:01,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:01,952 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:02,193 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-10-26 04:19:02,517 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-10-26 04:19:02,662 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-26 04:19:02,676 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:19:02,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:19:02,677 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:19:02,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:19:02,678 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:19:02,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:02,678 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:19:02,678 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:19:02,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration2_Lasso [2020-10-26 04:19:02,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:19:02,679 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:19:02,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:02,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:02,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:02,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:02,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:02,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:02,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:02,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:03,069 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-26 04:19:03,245 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-10-26 04:19:03,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:03,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:03,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:03,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:03,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:03,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:03,902 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:19:03,907 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 [2020-10-26 04:19:03,921 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 [2020-10-26 04:19:03,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:03,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:03,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:03,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:03,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:03,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:03,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:03,931 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:03,966 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 [2020-10-26 04:19:03,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:03,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:03,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:03,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:03,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:03,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:03,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:03,971 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) [2020-10-26 04:19:04,012 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 [2020-10-26 04:19:04,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:04,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:04,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,058 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 [2020-10-26 04:19:04,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:04,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:04,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:04,070 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,102 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 [2020-10-26 04:19:04,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:04,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:04,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:04,108 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 [2020-10-26 04:19:04,132 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 [2020-10-26 04:19:04,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,139 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:04,148 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) [2020-10-26 04:19:04,187 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 [2020-10-26 04:19:04,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,197 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 [2020-10-26 04:19:04,203 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) [2020-10-26 04:19:04,251 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 [2020-10-26 04:19:04,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,269 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,269 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:04,289 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,325 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 [2020-10-26 04:19:04,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:04,339 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 [2020-10-26 04:19:04,363 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 [2020-10-26 04:19:04,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:04,384 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) [2020-10-26 04:19:04,424 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 [2020-10-26 04:19:04,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,438 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) [2020-10-26 04:19:04,471 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 [2020-10-26 04:19:04,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,490 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,514 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 [2020-10-26 04:19:04,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:04,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:04,568 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 [2020-10-26 04:19:04,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:04,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:04,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:04,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:04,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:19:04,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,584 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:19:04,598 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-26 04:19:04,598 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:04,613 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:04,651 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:19:04,652 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:19:04,653 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 + 255 Supporting invariants [] [2020-10-26 04:19:04,813 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-26 04:19:04,821 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-26 04:19:04,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:04,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:19:04,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:04,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:19:04,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:04,994 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2020-10-26 04:19:05,000 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 04:19:05,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 04:19:05,015 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 04:19:05,015 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:17 [2020-10-26 04:19:05,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:19:05,050 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-10-26 04:19:05,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 5 states. [2020-10-26 04:19:05,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 18 states and 21 transitions. Complement of second has 9 states. [2020-10-26 04:19:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-26 04:19:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-26 04:19:05,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-10-26 04:19:05,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2020-10-26 04:19:05,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:05,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2020-10-26 04:19:05,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:05,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2020-10-26 04:19:05,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:05,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-10-26 04:19:05,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:05,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2020-10-26 04:19:05,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-26 04:19:05,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-26 04:19:05,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2020-10-26 04:19:05,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:19:05,128 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-10-26 04:19:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2020-10-26 04:19:05,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-10-26 04:19:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-26 04:19:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-26 04:19:05,131 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-26 04:19:05,131 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-26 04:19:05,131 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:19:05,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-10-26 04:19:05,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:05,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:05,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:05,133 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:05,133 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:05,134 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 156#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 157#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 167#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 158#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 159#L553-2 [2020-10-26 04:19:05,134 INFO L796 eck$LassoCheckResult]: Loop: 159#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 169#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 172#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 171#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 170#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 159#L553-2 [2020-10-26 04:19:05,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:05,135 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2020-10-26 04:19:05,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:05,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501454305] [2020-10-26 04:19:05,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,166 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:05,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:05,167 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 2 times [2020-10-26 04:19:05,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:05,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142932014] [2020-10-26 04:19:05,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,187 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:05,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:05,188 INFO L82 PathProgramCache]: Analyzing trace with hash 705693312, now seen corresponding path program 1 times [2020-10-26 04:19:05,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:05,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698712128] [2020-10-26 04:19:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:05,248 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:05,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:05,755 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2020-10-26 04:19:05,771 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-10-26 04:19:05,777 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:19:05,793 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:19:05,804 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:19:08,926 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-10-26 04:19:08,944 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:19:08,944 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:19:08,944 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:19:08,944 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:19:08,944 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:19:08,944 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:08,944 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:19:08,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:19:08,945 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration3_Lasso [2020-10-26 04:19:08,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:19:08,945 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:19:08,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:08,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:09,122 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-26 04:19:09,873 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-26 04:19:09,987 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-10-26 04:19:09,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:09,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:09,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:09,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:19:10,280 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-10-26 04:19:10,852 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-10-26 04:19:11,074 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:19:11,075 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-26 04:19:11,082 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 [2020-10-26 04:19:11,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:11,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:19:11,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:19:11,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:11,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:11,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:19:11,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:19:11,091 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 [2020-10-26 04:19:11,114 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 [2020-10-26 04:19:11,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:19:11,116 INFO L203 nArgumentSynthesizer]: 3 stem disjuncts [2020-10-26 04:19:11,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:19:11,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:19:11,126 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-10-26 04:19:11,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:19:11,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:19:11,162 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-26 04:19:11,162 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:19:11,174 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:11,181 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:19:11,181 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:19:11,182 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 + 255 Supporting invariants [] [2020-10-26 04:19:11,254 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-26 04:19:11,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-26 04:19:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:11,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:19:11,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:11,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 04:19:11,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:19:11,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:19:11,353 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 [2020-10-26 04:19:11,353 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-10-26 04:19:11,433 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 27 states and 32 transitions. Complement of second has 9 states. [2020-10-26 04:19:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-26 04:19:11,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-26 04:19:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-10-26 04:19:11,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2020-10-26 04:19:11,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:11,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2020-10-26 04:19:11,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:11,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2020-10-26 04:19:11,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:19:11,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2020-10-26 04:19:11,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:11,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 32 transitions. [2020-10-26 04:19:11,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-26 04:19:11,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-26 04:19:11,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2020-10-26 04:19:11,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:19:11,443 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-10-26 04:19:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2020-10-26 04:19:11,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-26 04:19:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-26 04:19:11,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-10-26 04:19:11,446 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-10-26 04:19:11,446 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-10-26 04:19:11,447 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 04:19:11,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2020-10-26 04:19:11,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-26 04:19:11,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:11,448 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:11,449 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2020-10-26 04:19:11,449 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:11,449 INFO L794 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 302#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 303#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 320#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 321#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 319#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 318#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 324#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 322#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 304#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 305#L553-2 [2020-10-26 04:19:11,449 INFO L796 eck$LassoCheckResult]: Loop: 305#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 308#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 309#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 313#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 314#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 305#L553-2 [2020-10-26 04:19:11,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:11,450 INFO L82 PathProgramCache]: Analyzing trace with hash 705693310, now seen corresponding path program 1 times [2020-10-26 04:19:11,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:11,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971598509] [2020-10-26 04:19:11,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:19:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:19:11,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971598509] [2020-10-26 04:19:11,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:19:11,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 04:19:11,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686186520] [2020-10-26 04:19:11,614 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:19:11,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 3 times [2020-10-26 04:19:11,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:11,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910427303] [2020-10-26 04:19:11,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:11,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:11,629 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:11,632 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:11,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:19:11,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:19:11,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:19:11,762 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-10-26 04:19:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:19:11,825 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-10-26 04:19:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 04:19:11,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2020-10-26 04:19:11,827 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:19:11,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2020-10-26 04:19:11,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:19:11,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:19:11,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:19:11,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:19:11,827 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:19:11,827 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:19:11,827 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:19:11,827 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 04:19:11,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:19:11,828 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:19:11,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:19:11,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:19:11 BoogieIcfgContainer [2020-10-26 04:19:11,837 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:19:11,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:19:11,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:19:11,845 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:19:11,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:19:00" (3/4) ... [2020-10-26 04:19:11,850 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:19:11,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:19:11,852 INFO L168 Benchmark]: Toolchain (without parser) took 12371.98 ms. Allocated memory was 41.9 MB in the beginning and 100.7 MB in the end (delta: 58.7 MB). Free memory was 27.6 MB in the beginning and 42.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:11,853 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:19:11,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.25 ms. Allocated memory was 41.9 MB in the beginning and 56.6 MB in the end (delta: 14.7 MB). Free memory was 26.9 MB in the beginning and 33.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:11,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.07 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 31.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:11,857 INFO L168 Benchmark]: Boogie Preprocessor took 54.90 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 30.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:19:11,858 INFO L168 Benchmark]: RCFGBuilder took 364.17 ms. Allocated memory is still 56.6 MB. Free memory was 30.3 MB in the beginning and 31.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:11,858 INFO L168 Benchmark]: BuchiAutomizer took 11253.10 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 31.9 MB in the beginning and 42.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:19:11,859 INFO L168 Benchmark]: Witness Printer took 6.58 ms. Allocated memory is still 100.7 MB. Free memory is still 42.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:19:11,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 584.25 ms. Allocated memory was 41.9 MB in the beginning and 56.6 MB in the end (delta: 14.7 MB). Free memory was 26.9 MB in the beginning and 33.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.07 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 31.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.90 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 30.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 364.17 ms. Allocated memory is still 56.6 MB. Free memory was 30.3 MB in the beginning and 31.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11253.10 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 31.9 MB in the beginning and 42.4 MB in the end (delta: -10.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.58 ms. Allocated memory is still 100.7 MB. Free memory is still 42.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 10.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 22 SDslu, 17 SDs, 0 SdLazy, 61 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital494 mio100 ax106 hnf99 lsp379 ukn37 mio100 lsp73 div120 bol100 ite100 ukn100 eq163 hnf85 smp62 dnf175 smp81 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 69ms VariablesStem: 8 VariablesLoop: 4 DisjunctsStem: 3 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 10 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...