./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:08:11,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:08:11,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:08:11,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:08:11,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:08:11,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:08:11,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:08:11,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:08:11,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:08:11,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:08:11,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:08:11,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:08:11,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:08:11,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:08:11,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:08:11,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:08:11,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:08:11,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:08:11,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:08:11,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:08:11,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:08:11,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:08:11,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:08:11,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:08:11,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:08:11,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:08:11,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:08:11,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:08:11,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:08:11,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:08:11,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:08:11,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:08:11,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:08:11,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:08:11,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:08:11,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:08:11,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:08:11,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:08:11,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:08:11,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:08:11,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:08:11,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:08:12,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:08:12,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:08:12,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:08:12,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:08:12,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:08:12,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:08:12,012 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:08:12,012 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:08:12,012 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:08:12,013 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:08:12,013 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:08:12,013 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:08:12,014 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:08:12,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:08:12,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:08:12,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:08:12,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:08:12,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:08:12,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:08:12,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:08:12,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:08:12,015 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:08:12,015 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:08:12,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:08:12,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:08:12,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:08:12,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:08:12,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:08:12,017 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:08:12,017 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa [2021-12-28 09:08:12,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:08:12,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:08:12,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:08:12,306 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:08:12,306 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:08:12,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2021-12-28 09:08:12,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e86853f3/215153b62c5440e09162a93527ae0121/FLAG011d8f741 [2021-12-28 09:08:12,681 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:08:12,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2021-12-28 09:08:12,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e86853f3/215153b62c5440e09162a93527ae0121/FLAG011d8f741 [2021-12-28 09:08:13,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e86853f3/215153b62c5440e09162a93527ae0121 [2021-12-28 09:08:13,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:08:13,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:08:13,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:08:13,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:08:13,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:08:13,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5298d2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13, skipping insertion in model container [2021-12-28 09:08:13,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:08:13,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:08:13,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:08:13,356 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:08:13,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:08:13,399 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:08:13,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13 WrapperNode [2021-12-28 09:08:13,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:08:13,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:08:13,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:08:13,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:08:13,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,438 INFO L137 Inliner]: procedures = 110, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2021-12-28 09:08:13,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:08:13,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:08:13,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:08:13,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:08:13,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:08:13,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:08:13,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:08:13,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:08:13,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (1/1) ... [2021-12-28 09:08:13,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:13,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:13,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:13,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:08:13,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 09:08:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 09:08:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 09:08:13,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 09:08:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:08:13,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:08:13,640 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:08:13,641 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:08:13,784 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:08:13,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:08:13,788 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 09:08:13,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:08:13 BoogieIcfgContainer [2021-12-28 09:08:13,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:08:13,790 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:08:13,790 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:08:13,794 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:08:13,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:08:13,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:08:13" (1/3) ... [2021-12-28 09:08:13,796 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@adb5bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:08:13, skipping insertion in model container [2021-12-28 09:08:13,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:08:13,796 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:08:13" (2/3) ... [2021-12-28 09:08:13,797 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@adb5bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:08:13, skipping insertion in model container [2021-12-28 09:08:13,797 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:08:13,797 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:08:13" (3/3) ... [2021-12-28 09:08:13,798 INFO L388 chiAutomizerObserver]: Analyzing ICFG Ben-Amram-2010LMCS-Ex2.3-alloca.i [2021-12-28 09:08:13,840 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:08:13,840 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:08:13,840 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:08:13,840 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:08:13,841 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:08:13,841 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:08:13,841 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:08:13,841 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:08:13,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:13,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:13,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:08:13,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:08:13,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:08:13,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:08:13,868 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:08:13,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:13,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:13,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:08:13,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:08:13,871 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:08:13,871 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:08:13,875 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 9#L555-2true [2021-12-28 09:08:13,876 INFO L793 eck$LassoCheckResult]: Loop: 9#L555-2true call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 10#L554-1true assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 8#L554-3true main_#t~short12#1 := main_#t~short10#1; 12#L554-4true assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 13#L554-6true assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 5#L555true assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 9#L555-2true [2021-12-28 09:08:13,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:13,880 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-28 09:08:13,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:13,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639813512] [2021-12-28 09:08:13,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:13,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:14,033 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:14,082 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:14,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 1 times [2021-12-28 09:08:14,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:14,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24314751] [2021-12-28 09:08:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:14,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:14,115 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:14,149 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash 177626380, now seen corresponding path program 1 times [2021-12-28 09:08:14,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:14,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143041537] [2021-12-28 09:08:14,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:14,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:14,206 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:14,223 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:15,025 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:08:15,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:08:15,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:08:15,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:08:15,026 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:08:15,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:15,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:08:15,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:08:15,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration1_Lasso [2021-12-28 09:08:15,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:08:15,027 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:08:15,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:08:15,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:08:15,763 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:08:15,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:15,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:15,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:15,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-28 09:08:15,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:15,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:15,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:15,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:15,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:15,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:15,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:15,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:15,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:15,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:15,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:15,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:15,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:15,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-28 09:08:15,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:15,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:15,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:15,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:15,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:15,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:15,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:15,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:15,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:15,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:15,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:15,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:15,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:15,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-28 09:08:15,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:15,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:15,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:15,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:15,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:15,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:15,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:15,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:15,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:15,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:15,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:15,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:15,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:15,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-28 09:08:15,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:15,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:15,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:15,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:15,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:15,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:15,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:15,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:15,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:15,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:15,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:15,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:15,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-28 09:08:15,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:15,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:15,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:15,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:15,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:15,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:15,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:15,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:15,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-28 09:08:16,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-28 09:08:16,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,042 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-28 09:08:16,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:16,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:16,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,075 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-28 09:08:16,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,102 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-28 09:08:16,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,135 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-28 09:08:16,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:16,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:16,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,183 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,184 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-28 09:08:16,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,232 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-28 09:08:16,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,285 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-28 09:08:16,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,340 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-28 09:08:16,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,376 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-28 09:08:16,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:16,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:16,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-28 09:08:16,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,415 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-28 09:08:16,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:08:16,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:08:16,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:08:16,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-28 09:08:16,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,445 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-28 09:08:16,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:16,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:16,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,489 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-28 09:08:16,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:16,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:16,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,530 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-28 09:08:16,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:16,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:16,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:08:16,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,583 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-28 09:08:16,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:08:16,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:08:16,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:08:16,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:08:16,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:08:16,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:08:16,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:08:16,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:08:16,629 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-28 09:08:16,630 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-28 09:08:16,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:08:16,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:16,632 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:08:16,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-28 09:08:16,634 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:08:16,660 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-28 09:08:16,660 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:08:16,661 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_1 + 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_1 Supporting invariants [] [2021-12-28 09:08:16,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-28 09:08:16,777 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2021-12-28 09:08:16,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:08:16,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 09:08:16,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:08:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:08:16,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-28 09:08:16,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:08:16,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:08:17,004 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-28 09:08:17,005 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:17,084 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 48 transitions. Complement of second has 10 states. [2021-12-28 09:08:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-28 09:08:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2021-12-28 09:08:17,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-28 09:08:17,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:08:17,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 8 letters. Loop has 6 letters. [2021-12-28 09:08:17,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:08:17,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 2 letters. Loop has 12 letters. [2021-12-28 09:08:17,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:08:17,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 48 transitions. [2021-12-28 09:08:17,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:17,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 22 states and 31 transitions. [2021-12-28 09:08:17,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-28 09:08:17,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-28 09:08:17,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2021-12-28 09:08:17,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-28 09:08:17,102 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-12-28 09:08:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2021-12-28 09:08:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-12-28 09:08:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-12-28 09:08:17,121 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-12-28 09:08:17,121 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-12-28 09:08:17,121 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:08:17,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2021-12-28 09:08:17,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:17,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:08:17,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:08:17,123 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:08:17,123 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:08:17,123 INFO L791 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 208#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 219#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 215#L554-1 assume !main_#t~short10#1; 222#L554-3 main_#t~short12#1 := main_#t~short10#1; 221#L554-4 assume !main_#t~short12#1; 216#L554-6 [2021-12-28 09:08:17,123 INFO L793 eck$LassoCheckResult]: Loop: 216#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 218#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 204#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 213#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 209#L554-3 main_#t~short12#1 := main_#t~short10#1; 210#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 216#L554-6 [2021-12-28 09:08:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash 889571245, now seen corresponding path program 1 times [2021-12-28 09:08:17,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046598202] [2021-12-28 09:08:17,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,163 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1629309642, now seen corresponding path program 2 times [2021-12-28 09:08:17,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028179851] [2021-12-28 09:08:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,190 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:17,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2128502410, now seen corresponding path program 1 times [2021-12-28 09:08:17,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120631250] [2021-12-28 09:08:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:08:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:08:17,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:08:17,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120631250] [2021-12-28 09:08:17,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120631250] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:08:17,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:08:17,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:08:17,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900098133] [2021-12-28 09:08:17,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:08:17,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:08:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:08:17,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:08:17,544 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:08:17,556 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2021-12-28 09:08:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:08:17,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2021-12-28 09:08:17,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:17,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 26 transitions. [2021-12-28 09:08:17,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-28 09:08:17,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-28 09:08:17,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2021-12-28 09:08:17,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-28 09:08:17,561 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-28 09:08:17,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2021-12-28 09:08:17,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-28 09:08:17,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-28 09:08:17,564 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-28 09:08:17,564 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-28 09:08:17,564 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:08:17,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-12-28 09:08:17,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:17,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:08:17,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:08:17,565 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:08:17,565 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:08:17,566 INFO L791 eck$LassoCheckResult]: Stem: 256#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 257#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 265#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 264#L554-1 assume !main_#t~short10#1; 271#L554-3 main_#t~short12#1 := main_#t~short10#1; 270#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 269#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 252#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 253#L555-2 [2021-12-28 09:08:17,566 INFO L793 eck$LassoCheckResult]: Loop: 253#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 262#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 258#L554-3 main_#t~short12#1 := main_#t~short10#1; 259#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 266#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 268#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 253#L555-2 [2021-12-28 09:08:17,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,566 INFO L85 PathProgramCache]: Analyzing trace with hash 179473424, now seen corresponding path program 1 times [2021-12-28 09:08:17,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935213161] [2021-12-28 09:08:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:08:17,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:08:17,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:08:17,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935213161] [2021-12-28 09:08:17,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935213161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:08:17,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:08:17,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:08:17,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41095677] [2021-12-28 09:08:17,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:08:17,590 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-28 09:08:17,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 3 times [2021-12-28 09:08:17,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388576165] [2021-12-28 09:08:17,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,601 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,607 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:17,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:08:17,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 09:08:17,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 09:08:17,797 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:17,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:08:17,813 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-12-28 09:08:17,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 09:08:17,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2021-12-28 09:08:17,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:17,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 23 transitions. [2021-12-28 09:08:17,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-28 09:08:17,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-28 09:08:17,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2021-12-28 09:08:17,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-28 09:08:17,815 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-28 09:08:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2021-12-28 09:08:17,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-28 09:08:17,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:08:17,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-12-28 09:08:17,816 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-28 09:08:17,816 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-28 09:08:17,816 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-28 09:08:17,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2021-12-28 09:08:17,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:08:17,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:08:17,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:08:17,817 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:08:17,817 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:08:17,817 INFO L791 eck$LassoCheckResult]: Stem: 311#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 312#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 322#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 319#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 313#L554-3 main_#t~short12#1 := main_#t~short10#1; 314#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 320#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 307#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 308#L555-2 [2021-12-28 09:08:17,817 INFO L793 eck$LassoCheckResult]: Loop: 308#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 317#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 326#L554-3 main_#t~short12#1 := main_#t~short10#1; 325#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 324#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 323#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 308#L555-2 [2021-12-28 09:08:17,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash 177626382, now seen corresponding path program 1 times [2021-12-28 09:08:17,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613216842] [2021-12-28 09:08:17,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,843 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:17,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 4 times [2021-12-28 09:08:17,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553459405] [2021-12-28 09:08:17,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,871 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:08:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:08:17,879 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:08:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:08:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash -692497897, now seen corresponding path program 1 times [2021-12-28 09:08:17,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:08:17,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907380585] [2021-12-28 09:08:17,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:08:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:08:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:08:17,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:08:17,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907380585] [2021-12-28 09:08:17,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907380585] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 09:08:17,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086683920] [2021-12-28 09:08:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:08:17,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 09:08:17,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:08:17,932 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 09:08:17,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-28 09:08:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:08:18,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-28 09:08:18,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:08:18,205 INFO L353 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2021-12-28 09:08:18,205 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 462 treesize of output 399 [2021-12-28 09:08:18,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2021-12-28 09:08:18,248 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2021-12-28 09:08:18,261 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 37 treesize of output 33 [2021-12-28 09:08:18,906 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 11 treesize of output 9 [2021-12-28 09:08:18,941 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2021-12-28 09:08:18,982 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2021-12-28 09:08:19,245 INFO L387 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 7 treesize of output 5 [2021-12-28 09:08:19,319 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 09:08:19,319 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 82 [2021-12-28 09:08:19,639 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 09:08:19,640 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 59 treesize of output 63 [2021-12-28 09:08:19,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 09:08:19,765 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 09:08:19,765 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 59 [2021-12-28 09:08:19,991 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 09:08:19,994 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 170 treesize of output 200 [2021-12-28 09:08:58,225 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-28 09:08:58,284 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2021-12-28 09:08:58,319 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-28 09:08:58,340 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-28 09:08:58,356 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2021-12-28 09:08:58,608 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-28 09:08:58,675 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2021-12-28 09:08:58,745 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2021-12-28 09:08:58,855 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-28 09:08:58,856 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 39 treesize of output 31 [2021-12-28 09:08:58,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-28 09:08:58,881 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 09:08:58,882 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 56 treesize of output 60 [2021-12-28 09:08:58,974 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-28 09:08:59,120 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 09:08:59,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 242 treesize of output 330 [2021-12-28 09:09:04,115 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2021-12-28 09:09:04,133 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-28 09:09:04,133 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 24 [2021-12-28 09:09:04,138 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19 treesize of output 15 [2021-12-28 09:09:04,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-12-28 09:09:04,173 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-12-28 09:09:04,208 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-12-28 09:09:04,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-28 09:09:04,232 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-12-28 09:09:04,625 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-28 09:09:04,704 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2021-12-28 09:09:04,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2021-12-28 09:09:04,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2021-12-28 09:09:04,828 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-28 09:09:04,829 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 32 treesize of output 24 [2021-12-28 09:09:04,848 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:04,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 09:09:04,886 INFO L387 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 151 treesize of output 147 [2021-12-28 09:09:04,890 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 38 treesize of output 34 [2021-12-28 09:09:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:04,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086683920] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 09:09:04,914 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 09:09:04,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2021-12-28 09:09:04,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442269571] [2021-12-28 09:09:04,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 09:09:05,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:09:05,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 09:09:05,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-28 09:09:05,087 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:05,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:09:05,157 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-12-28 09:09:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 09:09:05,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2021-12-28 09:09:05,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:09:05,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2021-12-28 09:09:05,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-28 09:09:05,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-28 09:09:05,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-12-28 09:09:05,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-28 09:09:05,159 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-12-28 09:09:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-12-28 09:09:05,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-12-28 09:09:05,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-28 09:09:05,160 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-28 09:09:05,160 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-28 09:09:05,160 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-28 09:09:05,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-12-28 09:09:05,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:09:05,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:09:05,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:09:05,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-28 09:09:05,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:09:05,161 INFO L791 eck$LassoCheckResult]: Stem: 450#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 451#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 458#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 456#L554-1 [2021-12-28 09:09:05,161 INFO L793 eck$LassoCheckResult]: Loop: 456#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 452#L554-3 main_#t~short12#1 := main_#t~short10#1; 453#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 459#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 446#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 447#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 456#L554-1 [2021-12-28 09:09:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:05,162 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-28 09:09:05,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:05,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924003423] [2021-12-28 09:09:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:05,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:05,181 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:05,188 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:05,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:05,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 1 times [2021-12-28 09:09:05,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:05,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779483083] [2021-12-28 09:09:05,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:05,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:05,199 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:05,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:05,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450553, now seen corresponding path program 2 times [2021-12-28 09:09:05,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:05,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377835725] [2021-12-28 09:09:05,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:05,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:05,231 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:05,249 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:05,975 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:09:05,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:09:05,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:09:05,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:09:05,975 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:09:05,975 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:05,975 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:09:05,975 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:09:05,975 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration5_Lasso [2021-12-28 09:09:05,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:09:05,975 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:09:05,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:05,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:06,711 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:09:06,712 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:09:06,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:06,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:06,713 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:06,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-28 09:09:06,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:06,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:06,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:06,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:06,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:06,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:06,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:06,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:06,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:06,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:06,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:06,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:06,749 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:06,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-28 09:09:06,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:06,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:06,757 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-28 09:09:06,757 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-28 09:09:06,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:06,772 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-12-28 09:09:06,772 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-28 09:09:06,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:06,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-28 09:09:06,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:06,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:06,807 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:06,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-28 09:09:06,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:06,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:06,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:06,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:06,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:06,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:06,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:06,818 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:06,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-28 09:09:06,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:06,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:06,833 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:06,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-28 09:09:06,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:06,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:06,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:06,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:06,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:06,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:06,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:06,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:06,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-28 09:09:06,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:06,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:06,862 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:06,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-28 09:09:06,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:06,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:06,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:06,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:06,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:06,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:06,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:06,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:06,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:06,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:06,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:06,898 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:06,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-28 09:09:06,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:06,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:06,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:06,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:06,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:06,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:06,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:06,910 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:09:06,915 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-28 09:09:06,915 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-28 09:09:06,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:06,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:06,916 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:06,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-28 09:09:06,918 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:09:06,924 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-28 09:09:06,924 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:09:06,924 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_2 Supporting invariants [] [2021-12-28 09:09:06,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:06,995 INFO L297 tatePredicateManager]: 20 out of 24 supporting invariants were superfluous and have been removed [2021-12-28 09:09:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:07,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-28 09:09:07,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:07,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:07,066 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 12 [2021-12-28 09:09:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:07,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 09:09:07,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:07,183 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2021-12-28 09:09:07,192 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-28 09:09:07,192 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2021-12-28 09:09:07,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:07,211 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2021-12-28 09:09:07,211 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:07,251 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 40 transitions. Complement of second has 10 states. [2021-12-28 09:09:07,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-28 09:09:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:07,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2021-12-28 09:09:07,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-28 09:09:07,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:07,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-28 09:09:07,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:07,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 12 letters. [2021-12-28 09:09:07,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:07,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 40 transitions. [2021-12-28 09:09:07,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:09:07,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 20 states and 21 transitions. [2021-12-28 09:09:07,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-28 09:09:07,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-28 09:09:07,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 21 transitions. [2021-12-28 09:09:07,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-28 09:09:07,255 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-12-28 09:09:07,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 21 transitions. [2021-12-28 09:09:07,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-12-28 09:09:07,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:07,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-12-28 09:09:07,256 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-28 09:09:07,256 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-28 09:09:07,256 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-28 09:09:07,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-12-28 09:09:07,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:09:07,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:09:07,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:09:07,257 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:09:07,257 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:09:07,257 INFO L791 eck$LassoCheckResult]: Stem: 661#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 662#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 667#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 668#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 665#L554-3 main_#t~short12#1 := main_#t~short10#1; 666#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 671#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 659#L555 assume main_#t~mem13#1 > main_#t~mem14#1;havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem15#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem15#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem15#1;call write~int(main_#t~nondet16#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet16#1;call main_#t~mem17#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem17#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem17#1; 660#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 669#L554-1 [2021-12-28 09:09:07,257 INFO L793 eck$LassoCheckResult]: Loop: 669#L554-1 assume main_#t~short10#1;call main_#t~mem9#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short10#1 := main_#t~mem9#1 > 0; 663#L554-3 main_#t~short12#1 := main_#t~short10#1; 664#L554-4 assume main_#t~short12#1;call main_#t~mem11#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);main_#t~short12#1 := main_#t~mem11#1 > 0; 670#L554-6 assume !!main_#t~short12#1;havoc main_#t~mem8#1;havoc main_#t~mem9#1;havoc main_#t~short10#1;havoc main_#t~mem11#1;havoc main_#t~short12#1;call main_#t~mem13#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call main_#t~mem14#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 657#L555 assume !(main_#t~mem13#1 > main_#t~mem14#1);havoc main_#t~mem13#1;havoc main_#t~mem14#1;call main_#t~mem18#1 := read~int(main_~z~0#1.base, main_~z~0#1.offset, 4);call write~int(main_#t~mem18#1 - 1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~mem18#1;call write~int(main_#t~nondet19#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet19#1;call main_#t~mem20#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem20#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem20#1; 658#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 669#L554-1 [2021-12-28 09:09:07,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450491, now seen corresponding path program 2 times [2021-12-28 09:09:07,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:07,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755209932] [2021-12-28 09:09:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:07,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:07,297 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:07,312 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:07,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:07,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 2 times [2021-12-28 09:09:07,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:07,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957031925] [2021-12-28 09:09:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:07,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:07,325 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:07,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:07,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:07,339 INFO L85 PathProgramCache]: Analyzing trace with hash 816748368, now seen corresponding path program 2 times [2021-12-28 09:09:07,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:07,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529122308] [2021-12-28 09:09:07,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:07,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:07,363 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:07,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:08,697 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:09:08,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:09:08,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:09:08,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:09:08,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:09:08,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:08,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:09:08,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:09:08,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration6_Lasso [2021-12-28 09:09:08,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:09:08,698 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:09:08,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:08,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:09:09,499 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:09:09,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,500 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-28 09:09:09,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:09,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:09,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-28 09:09:09,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,535 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-28 09:09:09,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,563 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-28 09:09:09,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,588 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-28 09:09:09,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:09,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:09,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,614 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-28 09:09:09,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-28 09:09:09,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,639 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-28 09:09:09,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:09,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:09,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-28 09:09:09,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,669 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-28 09:09:09,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,694 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-28 09:09:09,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-28 09:09:09,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,719 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-28 09:09:09,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,754 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-28 09:09:09,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,783 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-28 09:09:09,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,811 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-28 09:09:09,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,844 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-28 09:09:09,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-28 09:09:09,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,874 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-28 09:09:09,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:09,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:09,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:09,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,918 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-28 09:09:09,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:09,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:09,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:09,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:09,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:09,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:09,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:09,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:09,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:09,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-28 09:09:09,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:09,963 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:09,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-28 09:09:10,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:10,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:10,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:10,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,029 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-28 09:09:10,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-28 09:09:10,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,056 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-28 09:09:10,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,133 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-28 09:09:10,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-28 09:09:10,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,163 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-28 09:09:10,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-28 09:09:10,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,195 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-28 09:09:10,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,229 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-28 09:09:10,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,238 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,238 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,255 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-28 09:09:10,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,264 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-28 09:09:10,264 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-28 09:09:10,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,277 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-12-28 09:09:10,277 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-28 09:09:10,310 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:09:10,351 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-12-28 09:09:10,351 INFO L444 ModelExtractionUtils]: 29 out of 36 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-28 09:09:10,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,352 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-28 09:09:10,354 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:09:10,368 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2021-12-28 09:09:10,368 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:09:10,368 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~z~0#1.base) ULTIMATE.start_main_~z~0#1.offset)_3 Supporting invariants [] [2021-12-28 09:09:10,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-28 09:09:10,442 INFO L297 tatePredicateManager]: 20 out of 24 supporting invariants were superfluous and have been removed [2021-12-28 09:09:10,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:10,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-28 09:09:10,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:10,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 12 [2021-12-28 09:09:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:10,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 09:09:10,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:10,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-28 09:09:10,714 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2021-12-28 09:09:10,724 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-28 09:09:10,724 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2021-12-28 09:09:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:10,746 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2021-12-28 09:09:10,746 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:10,790 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 25 transitions. Complement of second has 10 states. [2021-12-28 09:09:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-28 09:09:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-28 09:09:10,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-28 09:09:10,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:10,791 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-28 09:09:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:10,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-28 09:09:10,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:10,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 12 [2021-12-28 09:09:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:10,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-28 09:09:10,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:11,036 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2021-12-28 09:09:11,046 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-28 09:09:11,046 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2021-12-28 09:09:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:11,066 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2021-12-28 09:09:11,066 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:11,096 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 25 transitions. Complement of second has 10 states. [2021-12-28 09:09:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-28 09:09:11,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:11,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-28 09:09:11,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-28 09:09:11,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:11,098 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-28 09:09:11,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:11,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-28 09:09:11,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:11,148 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 12 [2021-12-28 09:09:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:11,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-28 09:09:11,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:11,308 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2021-12-28 09:09:11,320 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-28 09:09:11,320 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2021-12-28 09:09:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:11,339 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 4 loop predicates [2021-12-28 09:09:11,339 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:11,381 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 28 transitions. Complement of second has 11 states. [2021-12-28 09:09:11,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-28 09:09:11,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2021-12-28 09:09:11,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-28 09:09:11,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:11,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 15 letters. Loop has 6 letters. [2021-12-28 09:09:11,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:11,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 12 letters. [2021-12-28 09:09:11,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:11,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 28 transitions. [2021-12-28 09:09:11,387 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:09:11,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2021-12-28 09:09:11,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:09:11,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:09:11,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:09:11,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:09:11,388 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:09:11,388 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:09:11,388 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:09:11,388 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-28 09:09:11,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:09:11,388 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:09:11,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:09:11,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:09:11 BoogieIcfgContainer [2021-12-28 09:09:11,392 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:09:11,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:09:11,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:09:11,393 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:09:11,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:08:13" (3/4) ... [2021-12-28 09:09:11,395 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:09:11,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:09:11,396 INFO L158 Benchmark]: Toolchain (without parser) took 58291.63ms. Allocated memory was 50.3MB in the beginning and 272.6MB in the end (delta: 222.3MB). Free memory was 27.1MB in the beginning and 152.4MB in the end (delta: -125.3MB). Peak memory consumption was 96.0MB. Max. memory is 16.1GB. [2021-12-28 09:09:11,396 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.1MB in the beginning and 32.0MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:09:11,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.35ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.9MB in the beginning and 39.8MB in the end (delta: -12.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-28 09:09:11,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.48ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 37.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:09:11,397 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 36.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:09:11,397 INFO L158 Benchmark]: RCFGBuilder took 322.64ms. Allocated memory is still 60.8MB. Free memory was 36.6MB in the beginning and 40.2MB in the end (delta: -3.6MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-12-28 09:09:11,397 INFO L158 Benchmark]: BuchiAutomizer took 57602.30ms. Allocated memory was 60.8MB in the beginning and 272.6MB in the end (delta: 211.8MB). Free memory was 40.2MB in the beginning and 152.4MB in the end (delta: -112.2MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2021-12-28 09:09:11,398 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 272.6MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:09:11,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.1MB in the beginning and 32.0MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.35ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.9MB in the beginning and 39.8MB in the end (delta: -12.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.48ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 37.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 36.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.64ms. Allocated memory is still 60.8MB. Free memory was 36.6MB in the beginning and 40.2MB in the end (delta: -3.6MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 57602.30ms. Allocated memory was 60.8MB in the beginning and 272.6MB in the end (delta: 211.8MB). Free memory was 40.2MB in the beginning and 152.4MB in the end (delta: -112.2MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 272.6MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] + -1 * unknown-#memory_int-unknown[x][x] + unknown-#memory_int-unknown[z][z] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[z][z] and consists of 6 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 57.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 55.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 44 mSDtfsCounter, 160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital568 mio100 ax104 hnf100 lsp93 ukn45 mio100 lsp36 div100 bol100 ite100 ukn100 eq177 hnf89 smp94 dnf126 smp100 tf100 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 6 VariablesLoop: 8 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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! [2021-12-28 09:09:11,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:11,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE