./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.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 18b42b65120149c30866fbc5b5479df029781f63 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:04:26,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:04:26,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:04:26,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:04:26,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:04:26,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:04:26,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:04:26,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:04:26,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:04:26,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:04:26,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:04:26,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:04:26,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:04:26,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:04:26,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:04:26,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:04:26,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:04:26,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:04:26,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:04:26,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:04:26,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:04:26,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:04:26,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:04:26,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:04:26,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:04:26,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:04:26,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:04:26,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:04:26,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:04:26,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:04:26,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:04:26,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:04:26,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:04:26,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:04:26,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:04:26,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:04:26,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:04:26,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:04:26,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:04:26,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:04:26,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:04:26,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:04:26,943 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:04:26,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:04:26,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:04:26,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:04:26,945 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:04:26,946 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:04:26,946 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:04:26,946 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:04:26,946 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:04:26,946 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:04:26,947 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:04:26,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:04:26,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:04:26,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:04:26,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:04:26,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:04:26,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:04:26,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:04:26,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:04:26,948 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:04:26,949 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:04:26,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:04:26,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:04:26,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:04:26,950 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:04:26,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:04:26,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:04:26,950 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:04:26,951 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:04:26,951 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18b42b65120149c30866fbc5b5479df029781f63 [2019-11-28 03:04:27,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:04:27,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:04:27,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:04:27,289 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:04:27,291 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:04:27,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i [2019-11-28 03:04:27,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14324adb8/7aebf031e0f943eca4df48a33fd926d3/FLAG81db18a90 [2019-11-28 03:04:27,837 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:04:27,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11B.i [2019-11-28 03:04:27,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14324adb8/7aebf031e0f943eca4df48a33fd926d3/FLAG81db18a90 [2019-11-28 03:04:28,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14324adb8/7aebf031e0f943eca4df48a33fd926d3 [2019-11-28 03:04:28,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:04:28,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:04:28,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:04:28,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:04:28,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:04:28,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c15a45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28, skipping insertion in model container [2019-11-28 03:04:28,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:04:28,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:04:28,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:04:28,463 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:04:28,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:04:28,491 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:04:28,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28 WrapperNode [2019-11-28 03:04:28,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:04:28,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:04:28,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:04:28,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:04:28,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:04:28,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:04:28,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:04:28,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:04:28,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (1/1) ... [2019-11-28 03:04:28,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:04:28,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:04:28,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:04:28,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:04:28,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (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 [2019-11-28 03:04:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:04:28,674 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-11-28 03:04:28,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-11-28 03:04:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 03:04:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:04:28,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:04:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:04:28,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:04:28,889 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:04:28,890 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 03:04:28,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:28 BoogieIcfgContainer [2019-11-28 03:04:28,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:04:28,893 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:04:28,893 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:04:28,899 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:04:28,900 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:28,901 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:04:28" (1/3) ... [2019-11-28 03:04:28,902 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ad8030b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:04:28, skipping insertion in model container [2019-11-28 03:04:28,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:28,903 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:28" (2/3) ... [2019-11-28 03:04:28,903 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ad8030b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:04:28, skipping insertion in model container [2019-11-28 03:04:28,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:28,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:28" (3/3) ... [2019-11-28 03:04:28,905 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex11B.i [2019-11-28 03:04:28,964 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:04:28,964 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:04:28,964 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:04:28,965 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:04:28,965 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:04:28,965 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:04:28,965 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:04:28,965 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:04:28,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-28 03:04:29,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-28 03:04:29,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:29,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:29,017 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:04:29,017 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:29,017 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:04:29,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-28 03:04:29,020 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-28 03:04:29,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:29,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:29,020 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:04:29,021 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:29,030 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 19#L28-3true [2019-11-28 03:04:29,030 INFO L796 eck$LassoCheckResult]: Loop: 19#L28-3true call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 4#L28-1true assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 12#L33true call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 3#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 7#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 15#recFINALtrue assume true; 13#recEXITtrue >#39#return; 10#L33-1true assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 5#L33-3true call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~ite12;havoc main_#t~mem13; 19#L28-3true [2019-11-28 03:04:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:29,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2019-11-28 03:04:29,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:29,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757587235] [2019-11-28 03:04:29,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:29,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:29,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:29,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1673639481, now seen corresponding path program 1 times [2019-11-28 03:04:29,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:29,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802846223] [2019-11-28 03:04:29,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:29,291 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:29,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:29,293 INFO L82 PathProgramCache]: Analyzing trace with hash -508919995, now seen corresponding path program 1 times [2019-11-28 03:04:29,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:29,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361707156] [2019-11-28 03:04:29,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:29,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:29,986 WARN L192 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-11-28 03:04:30,199 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:30,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:30,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:30,201 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:30,201 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:30,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:30,201 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:30,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:30,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11B.i_Iteration1_Lasso [2019-11-28 03:04:30,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:30,203 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:30,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,544 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-11-28 03:04:30,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:30,968 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:30,974 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) [2019-11-28 03:04:30,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:30,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:30,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:30,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:30,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:30,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:30,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:31,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:31,003 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 [2019-11-28 03:04:31,016 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 [2019-11-28 03:04:31,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:31,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:31,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:31,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:31,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:31,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:31,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:31,035 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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:31,055 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 [2019-11-28 03:04:31,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:31,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:31,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:31,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:31,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:31,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:31,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:31,065 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) [2019-11-28 03:04:31,073 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 [2019-11-28 03:04:31,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:31,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:31,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:31,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:31,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:31,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:31,088 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 [2019-11-28 03:04:31,097 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 [2019-11-28 03:04:31,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:31,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:31,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:31,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:31,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:31,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:31,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:31,105 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 [2019-11-28 03:04:31,118 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 [2019-11-28 03:04:31,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:31,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:31,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:31,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:31,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:31,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:31,137 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) [2019-11-28 03:04:31,156 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 [2019-11-28 03:04:31,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:31,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:31,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:31,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:31,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:31,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:31,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:31,209 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-28 03:04:31,210 INFO L444 ModelExtractionUtils]: 2 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:31,231 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:31,248 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:04:31,248 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:31,249 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1 Supporting invariants [] [2019-11-28 03:04:31,310 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 03:04:31,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:04:31,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:31,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:04:31,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:31,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-28 03:04:31,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:31,501 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:31,501 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-28 03:04:31,502 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:31,515 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:31,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 03:04:31,522 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-11-28 03:04:31,523 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:31,528 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:31,528 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:31,529 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:7 [2019-11-28 03:04:31,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:31,585 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2019-11-28 03:04:31,587 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 6 states. [2019-11-28 03:04:31,757 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 6 states. Result 65 states and 78 transitions. Complement of second has 18 states. [2019-11-28 03:04:31,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:31,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-28 03:04:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 24 transitions. [2019-11-28 03:04:31,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 2 letters. Loop has 9 letters. [2019-11-28 03:04:31,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:31,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 11 letters. Loop has 9 letters. [2019-11-28 03:04:31,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:31,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 2 letters. Loop has 18 letters. [2019-11-28 03:04:31,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:31,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 78 transitions. [2019-11-28 03:04:31,797 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-11-28 03:04:31,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 47 states and 58 transitions. [2019-11-28 03:04:31,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-11-28 03:04:31,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2019-11-28 03:04:31,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 58 transitions. [2019-11-28 03:04:31,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:31,815 INFO L688 BuchiCegarLoop]: Abstraction has 47 states and 58 transitions. [2019-11-28 03:04:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 58 transitions. [2019-11-28 03:04:31,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2019-11-28 03:04:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-28 03:04:31,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2019-11-28 03:04:31,871 INFO L711 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2019-11-28 03:04:31,871 INFO L591 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2019-11-28 03:04:31,872 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:04:31,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 57 transitions. [2019-11-28 03:04:31,878 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-11-28 03:04:31,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:31,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:31,880 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:31,880 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:04:31,880 INFO L794 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 192#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 193#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 208#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 188#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 200#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 187#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 175#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 173#recENTRY [2019-11-28 03:04:31,880 INFO L796 eck$LassoCheckResult]: Loop: 173#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 176#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 174#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 173#recENTRY [2019-11-28 03:04:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:31,881 INFO L82 PathProgramCache]: Analyzing trace with hash -15731550, now seen corresponding path program 1 times [2019-11-28 03:04:31,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:31,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176407663] [2019-11-28 03:04:31,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:32,022 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:32,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:32,023 INFO L82 PathProgramCache]: Analyzing trace with hash 29951, now seen corresponding path program 1 times [2019-11-28 03:04:32,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:32,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158950609] [2019-11-28 03:04:32,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:32,063 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:32,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:32,064 INFO L82 PathProgramCache]: Analyzing trace with hash -507170626, now seen corresponding path program 2 times [2019-11-28 03:04:32,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:32,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775262776] [2019-11-28 03:04:32,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:32,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:32,276 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-11-28 03:04:32,591 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-11-28 03:04:33,051 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2019-11-28 03:04:33,687 WARN L192 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2019-11-28 03:04:33,811 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-11-28 03:04:33,816 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:33,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:33,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:33,816 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:33,816 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:33,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:33,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:33,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:33,817 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11B.i_Iteration2_Lasso [2019-11-28 03:04:33,817 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:33,817 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:33,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:33,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:33,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:33,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:33,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:33,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:33,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,016 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 03:04:34,159 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-11-28 03:04:34,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:34,744 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2019-11-28 03:04:34,835 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:34,836 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 03:04:34,843 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 [2019-11-28 03:04:34,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:34,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:34,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:34,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:34,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:34,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:34,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:34,846 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 [2019-11-28 03:04:34,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:34,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:34,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:34,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:34,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:34,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:34,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:34,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:34,863 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:34,878 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 [2019-11-28 03:04:34,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:34,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:34,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:34,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:34,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:34,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:34,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:34,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:34,905 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 [2019-11-28 03:04:34,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:34,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:34,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:34,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:34,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:34,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:34,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:34,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Exception during sending of exit command (exit): Broken pipe 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 [2019-11-28 03:04:34,922 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 [2019-11-28 03:04:34,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:34,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:34,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:34,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:34,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:34,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:34,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:34,927 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:34,941 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 [2019-11-28 03:04:34,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:34,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:34,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:34,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:34,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:34,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:34,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:34,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:34,958 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 [2019-11-28 03:04:34,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:34,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:34,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:34,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:34,964 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:34,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:34,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:35,004 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 [2019-11-28 03:04:35,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:35,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:35,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:35,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:35,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:35,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:35,011 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 [2019-11-28 03:04:35,019 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 [2019-11-28 03:04:35,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:35,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:35,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:35,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:35,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:35,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:35,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:35,033 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 [2019-11-28 03:04:35,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:35,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:35,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:35,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:35,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:35,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:35,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:35,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:35,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:35,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:35,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:35,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:35,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:35,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:35,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:35,080 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 [2019-11-28 03:04:35,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:35,084 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2019-11-28 03:04:35,084 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:04:35,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:35,102 INFO L401 nArgumentSynthesizer]: We have 44 Motzkin's Theorem applications. [2019-11-28 03:04:35,103 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:04:35,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:35,150 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 [2019-11-28 03:04:35,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:35,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:35,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:35,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:35,159 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:35,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:35,172 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:35,192 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 03:04:35,193 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:35,202 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:35,204 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:04:35,205 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:35,205 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~op.base) 0)_1) = 2*v_rep(select (select #memory_int rec_#in~op.base) 0)_1 + 1 Supporting invariants [] [2019-11-28 03:04:35,214 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-28 03:04:35,219 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:04:35,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:35,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 03:04:35,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:35,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-28 03:04:35,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:35,353 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:35,353 INFO L377 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 1 case distinctions, treesize of input 36 treesize of output 45 [2019-11-28 03:04:35,354 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:35,381 INFO L588 ElimStorePlain]: treesize reduction 16, result has 71.9 percent of original size [2019-11-28 03:04:35,382 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:35,382 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:24 [2019-11-28 03:04:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:35,403 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:04:35,403 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-11-28 03:04:35,537 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 128 states and 165 transitions. Complement of second has 18 states. [2019-11-28 03:04:35,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:35,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:04:35,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2019-11-28 03:04:35,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-28 03:04:35,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:35,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-28 03:04:35,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:35,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 8 letters. Loop has 6 letters. [2019-11-28 03:04:35,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:35,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 165 transitions. [2019-11-28 03:04:35,547 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2019-11-28 03:04:35,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 110 states and 147 transitions. [2019-11-28 03:04:35,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2019-11-28 03:04:35,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2019-11-28 03:04:35,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 147 transitions. [2019-11-28 03:04:35,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:35,554 INFO L688 BuchiCegarLoop]: Abstraction has 110 states and 147 transitions. [2019-11-28 03:04:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 147 transitions. [2019-11-28 03:04:35,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2019-11-28 03:04:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-28 03:04:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2019-11-28 03:04:35,571 INFO L711 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2019-11-28 03:04:35,572 INFO L591 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2019-11-28 03:04:35,572 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:04:35,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 135 transitions. [2019-11-28 03:04:35,576 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2019-11-28 03:04:35,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:35,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:35,579 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:35,579 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:35,579 INFO L794 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 449#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 450#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 474#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 502#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 504#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 508#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 506#recFINAL assume true; 503#recEXIT >#39#return; 500#L33-1 assume !(main_#t~ret11 <= -1);main_#t~ite12 := 1; 445#L33-3 [2019-11-28 03:04:35,580 INFO L796 eck$LassoCheckResult]: Loop: 445#L33-3 call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~ite12;havoc main_#t~mem13; 446#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 487#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 480#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 496#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 497#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 488#recFINAL assume true; 489#recEXIT >#39#return; 499#L33-1 assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 445#L33-3 [2019-11-28 03:04:35,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:35,580 INFO L82 PathProgramCache]: Analyzing trace with hash 2061793209, now seen corresponding path program 1 times [2019-11-28 03:04:35,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:35,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821913814] [2019-11-28 03:04:35,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:35,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:35,675 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821913814] [2019-11-28 03:04:35,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:04:35,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:04:35,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155179740] [2019-11-28 03:04:35,679 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:04:35,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:35,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1530037457, now seen corresponding path program 2 times [2019-11-28 03:04:35,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:35,681 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425716746] [2019-11-28 03:04:35,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:35,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:36,124 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2019-11-28 03:04:36,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:04:36,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:04:36,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:04:36,210 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. cyclomatic complexity: 41 Second operand 6 states. [2019-11-28 03:04:36,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:04:36,293 INFO L93 Difference]: Finished difference Result 98 states and 123 transitions. [2019-11-28 03:04:36,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 03:04:36,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 123 transitions. [2019-11-28 03:04:36,296 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2019-11-28 03:04:36,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 92 states and 117 transitions. [2019-11-28 03:04:36,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2019-11-28 03:04:36,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2019-11-28 03:04:36,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 117 transitions. [2019-11-28 03:04:36,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:36,300 INFO L688 BuchiCegarLoop]: Abstraction has 92 states and 117 transitions. [2019-11-28 03:04:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 117 transitions. [2019-11-28 03:04:36,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2019-11-28 03:04:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-28 03:04:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2019-11-28 03:04:36,310 INFO L711 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2019-11-28 03:04:36,310 INFO L591 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2019-11-28 03:04:36,310 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:04:36,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 115 transitions. [2019-11-28 03:04:36,312 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-11-28 03:04:36,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:36,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:36,314 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:36,314 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:36,314 INFO L794 eck$LassoCheckResult]: Stem: 677#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 667#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 668#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 694#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 711#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 715#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 713#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 670#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 709#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 669#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 671#recFINAL assume true; 692#recEXIT >#37#return; 714#L19-1 #res := #t~ret5;havoc #t~ret5; 712#recFINAL assume true; 710#recEXIT >#39#return; 675#L33-1 assume !(main_#t~ret11 <= -1);main_#t~ite12 := 1; 663#L33-3 [2019-11-28 03:04:36,314 INFO L796 eck$LassoCheckResult]: Loop: 663#L33-3 call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~ite12;havoc main_#t~mem13; 664#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 703#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 680#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 702#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 706#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 705#recFINAL assume true; 704#recEXIT >#39#return; 696#L33-1 assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 663#L33-3 [2019-11-28 03:04:36,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:36,315 INFO L82 PathProgramCache]: Analyzing trace with hash 970657719, now seen corresponding path program 1 times [2019-11-28 03:04:36,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:36,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151678542] [2019-11-28 03:04:36,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 03:04:36,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151678542] [2019-11-28 03:04:36,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:04:36,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 03:04:36,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346798434] [2019-11-28 03:04:36,398 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:04:36,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:36,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1530037457, now seen corresponding path program 3 times [2019-11-28 03:04:36,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:36,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818156032] [2019-11-28 03:04:36,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,418 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:36,773 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-11-28 03:04:36,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:04:36,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 03:04:36,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 03:04:36,833 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. cyclomatic complexity: 33 Second operand 7 states. [2019-11-28 03:04:36,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:04:36,907 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2019-11-28 03:04:36,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 03:04:36,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 96 transitions. [2019-11-28 03:04:36,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:04:36,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 52 states and 63 transitions. [2019-11-28 03:04:36,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 03:04:36,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 03:04:36,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 63 transitions. [2019-11-28 03:04:36,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:36,912 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-11-28 03:04:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 63 transitions. [2019-11-28 03:04:36,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2019-11-28 03:04:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-28 03:04:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-11-28 03:04:36,917 INFO L711 BuchiCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-11-28 03:04:36,918 INFO L591 BuchiCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-11-28 03:04:36,918 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:04:36,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 60 transitions. [2019-11-28 03:04:36,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:04:36,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:36,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:36,920 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:36,920 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:04:36,920 INFO L794 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 857#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem13, main_#t~ret11, main_#t~ite12, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 858#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 852#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 853#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 877#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 884#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 866#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 886#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 890#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 888#recFINAL assume true; 869#recEXIT >#37#return; 870#L19-1 #res := #t~ret5;havoc #t~ret5; 882#recFINAL assume true; 878#recEXIT >#39#return; 862#L33-1 assume main_#t~ret11 <= -1;main_#t~ite12 := -1; 854#L33-3 call write~int(main_#t~mem13 + main_#t~ite12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~ret11;havoc main_#t~ite12;havoc main_#t~mem13; 855#L28-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 851#L28-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem13 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 846#L33 call main_#t~ret11 := rec(main_~pp~0.base, main_~pp~0.offset);< 843#recENTRY [2019-11-28 03:04:36,920 INFO L796 eck$LassoCheckResult]: Loop: 843#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 845#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~op.base, ~op.offset); 844#L19 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 843#recENTRY [2019-11-28 03:04:36,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:36,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1312873862, now seen corresponding path program 1 times [2019-11-28 03:04:36,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:36,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117254342] [2019-11-28 03:04:36,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,971 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:36,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:36,971 INFO L82 PathProgramCache]: Analyzing trace with hash 29951, now seen corresponding path program 2 times [2019-11-28 03:04:36,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:36,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731294923] [2019-11-28 03:04:36,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,985 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:36,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:36,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1853025306, now seen corresponding path program 2 times [2019-11-28 03:04:36,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:36,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758235728] [2019-11-28 03:04:36,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:37,094 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:37,258 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 03:04:37,864 WARN L192 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2019-11-28 03:04:39,693 WARN L192 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 216 DAG size of output: 184 [2019-11-28 03:04:39,966 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-11-28 03:04:40,277 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-11-28 03:04:40,466 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-11-28 03:04:40,469 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:40,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:40,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:40,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:40,469 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:40,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:40,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:40,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:40,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11B.i_Iteration5_Lasso [2019-11-28 03:04:40,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:40,470 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:40,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,701 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-11-28 03:04:40,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:41,552 WARN L192 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-11-28 03:04:41,625 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:41,626 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:41,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:41,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,652 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 [2019-11-28 03:04:41,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,656 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,665 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 [2019-11-28 03:04:41,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:41,669 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,676 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 [2019-11-28 03:04:41,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:41,679 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 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:41,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:41,692 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,698 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 [2019-11-28 03:04:41,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:41,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,708 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 [2019-11-28 03:04:41,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:41,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,723 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 [2019-11-28 03:04:41,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:41,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,732 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 [2019-11-28 03:04:41,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:41,735 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,741 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 [2019-11-28 03:04:41,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:41,755 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,762 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 [2019-11-28 03:04:41,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,767 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,774 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 [2019-11-28 03:04:41,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,777 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,779 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,785 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 [2019-11-28 03:04:41,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:41,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:41,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,795 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 [2019-11-28 03:04:41,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:41,802 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:41,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:41,826 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,834 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 [2019-11-28 03:04:41,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,844 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 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,849 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 [2019-11-28 03:04:41,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:41,858 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,868 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 [2019-11-28 03:04:41,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,870 INFO L203 nArgumentSynthesizer]: 16 stem disjuncts [2019-11-28 03:04:41,870 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:04:41,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,903 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2019-11-28 03:04:41,903 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:04:41,959 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,967 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 [2019-11-28 03:04:41,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,982 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,990 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 [2019-11-28 03:04:41,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:42,001 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:42,015 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-28 03:04:42,015 INFO L444 ModelExtractionUtils]: 0 out of 10 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:42,019 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:42,021 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:04:42,021 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:42,022 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_2) = 2*v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_2 + 1 Supporting invariants [1*v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_2 - 1*v_rep(select (select #memory_int rec_#in~op.base) rec_#in~op.offset)_2 >= 0] [2019-11-28 03:04:42,030 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-28 03:04:42,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:04:42,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:42,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 03:04:42,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:42,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:42,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-28 03:04:42,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:42,155 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 15 [2019-11-28 03:04:42,156 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,162 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:42,162 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,162 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-28 03:04:42,203 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:42,204 INFO L377 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 1 case distinctions, treesize of input 36 treesize of output 53 [2019-11-28 03:04:42,205 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,232 INFO L588 ElimStorePlain]: treesize reduction 20, result has 68.8 percent of original size [2019-11-28 03:04:42,233 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,234 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:23 [2019-11-28 03:04:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:42,253 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:04:42,253 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-11-28 03:04:42,347 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 78 states and 96 transitions. Complement of second has 16 states. [2019-11-28 03:04:42,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:42,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:04:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-11-28 03:04:42,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-28 03:04:42,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:42,350 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:42,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 03:04:42,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:42,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:42,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-28 03:04:42,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:42,460 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 15 [2019-11-28 03:04:42,460 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,467 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:42,467 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,468 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-28 03:04:42,502 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:42,502 INFO L377 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 1 case distinctions, treesize of input 36 treesize of output 53 [2019-11-28 03:04:42,503 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,533 INFO L588 ElimStorePlain]: treesize reduction 20, result has 68.8 percent of original size [2019-11-28 03:04:42,533 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,534 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:23 [2019-11-28 03:04:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:42,549 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:04:42,549 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-11-28 03:04:42,634 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 78 states and 96 transitions. Complement of second has 16 states. [2019-11-28 03:04:42,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:04:42,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-11-28 03:04:42,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-28 03:04:42,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:42,636 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:42,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:42,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 03:04:42,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:42,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:42,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-28 03:04:42,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:42,748 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 23 treesize of output 15 [2019-11-28 03:04:42,748 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,753 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:42,753 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,753 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-28 03:04:42,795 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:42,796 INFO L377 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 1 case distinctions, treesize of input 36 treesize of output 53 [2019-11-28 03:04:42,797 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,825 INFO L588 ElimStorePlain]: treesize reduction 20, result has 68.8 percent of original size [2019-11-28 03:04:42,826 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:42,826 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:23 [2019-11-28 03:04:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:42,841 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:04:42,842 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-11-28 03:04:42,964 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 60 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 76 states and 88 transitions. Complement of second has 17 states. [2019-11-28 03:04:42,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:42,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:04:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-11-28 03:04:42,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-28 03:04:42,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:42,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 23 letters. Loop has 3 letters. [2019-11-28 03:04:42,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:42,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 20 letters. Loop has 6 letters. [2019-11-28 03:04:42,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:42,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 88 transitions. [2019-11-28 03:04:42,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:42,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 0 states and 0 transitions. [2019-11-28 03:04:42,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:04:42,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:04:42,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:04:42,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:04:42,978 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:42,978 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:42,978 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:42,978 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:04:42,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:04:42,979 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:42,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:04:42,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:04:42 BoogieIcfgContainer [2019-11-28 03:04:42,986 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:04:42,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:04:42,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:04:42,988 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:04:42,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:28" (3/4) ... [2019-11-28 03:04:43,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:04:43,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:04:43,003 INFO L168 Benchmark]: Toolchain (without parser) took 14794.45 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 354.9 MB). Free memory was 960.4 MB in the beginning and 954.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 360.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:43,003 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:43,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.49 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:43,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:43,006 INFO L168 Benchmark]: Boogie Preprocessor took 21.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:43,006 INFO L168 Benchmark]: RCFGBuilder took 286.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:43,007 INFO L168 Benchmark]: BuchiAutomizer took 14093.23 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 219.2 MB). Free memory was 1.1 GB in the beginning and 954.4 MB in the end (delta: 151.2 MB). Peak memory consumption was 370.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:43,007 INFO L168 Benchmark]: Witness Printer took 13.16 ms. Allocated memory is still 1.4 GB. Free memory is still 954.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:43,010 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.49 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 286.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14093.23 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 219.2 MB). Free memory was 1.1 GB in the beginning and 954.4 MB in the end (delta: 151.2 MB). Peak memory consumption was 370.3 MB. Max. memory is 11.5 GB. * Witness Printer took 13.16 ms. Allocated memory is still 1.4 GB. Free memory is still 954.4 MB. There was no memory consumed. Max. memory is 11.5 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 - 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[qq][qq] and consists of 9 locations. One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[op][0] + 1 and consists of 6 locations. One nondeterministic module has affine ranking function 2 * \old(unknown-#memory_int-unknown)[op][op] + 1 and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 11.8s. Construction of modules took 0.2s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 104 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 80 SDtfs, 61 SDslu, 129 SDs, 0 SdLazy, 202 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital364 mio100 ax100 hnf100 lsp97 ukn45 mio100 lsp29 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf444 smp79 tf100 neg87 sie149 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 98ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 16 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 76 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...