./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 09:26:20,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:26:20,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:26:20,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:26:20,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:26:20,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:26:20,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:26:20,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:26:20,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:26:20,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:26:20,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:26:20,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:26:20,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:26:20,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:26:20,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:26:20,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:26:20,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:26:20,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:26:20,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:26:20,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:26:20,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:26:20,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:26:20,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:26:20,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:26:20,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:26:20,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:26:20,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:26:20,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:26:20,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:26:20,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:26:20,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:26:20,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:26:20,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:26:20,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:26:20,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:26:20,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:26:20,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:26:20,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:26:20,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:26:20,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:26:20,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:26:20,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-16 09:26:20,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:26:20,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:26:20,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:26:20,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:26:20,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:26:20,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:26:20,616 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:26:20,617 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:26:20,617 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:26:20,617 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:26:20,618 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:26:20,618 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:26:20,618 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:26:20,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:26:20,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:26:20,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:26:20,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:26:20,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:26:20,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:26:20,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:26:20,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:26:20,620 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:26:20,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:26:20,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:26:20,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:26:20,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:26:20,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:26:20,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:26:20,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:26:20,623 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:26:20,623 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa [2021-12-16 09:26:20,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:26:20,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:26:20,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:26:20,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:26:20,840 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:26:20,841 INFO L432 ainManager$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 [2021-12-16 09:26:20,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5055cc31b/0dcfde6e2c454de49f4c416e32952969/FLAG23ed3663d [2021-12-16 09:26:21,320 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:26:21,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2021-12-16 09:26:21,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5055cc31b/0dcfde6e2c454de49f4c416e32952969/FLAG23ed3663d [2021-12-16 09:26:21,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5055cc31b/0dcfde6e2c454de49f4c416e32952969 [2021-12-16 09:26:21,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:26:21,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:26:21,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:26:21,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:26:21,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:26:21,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22166c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21, skipping insertion in model container [2021-12-16 09:26:21,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:26:21,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:26:21,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:26:21,616 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:26:21,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:26:21,667 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:26:21,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21 WrapperNode [2021-12-16 09:26:21,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:26:21,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:26:21,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:26:21,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:26:21,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,702 INFO L137 Inliner]: procedures = 110, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2021-12-16 09:26:21,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:26:21,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:26:21,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:26:21,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:26:21,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:26:21,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:26:21,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:26:21,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:26:21,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (1/1) ... [2021-12-16 09:26:21,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:21,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:21,774 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) [2021-12-16 09:26:21,781 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 [2021-12-16 09:26:21,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 09:26:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 09:26:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 09:26:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 09:26:21,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:26:21,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:26:21,876 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:26:21,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:26:22,045 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:26:22,049 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:26:22,049 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 09:26:22,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:22 BoogieIcfgContainer [2021-12-16 09:26:22,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:26:22,051 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:26:22,052 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:26:22,059 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:26:22,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:22,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:26:21" (1/3) ... [2021-12-16 09:26:22,061 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@745175a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:26:22, skipping insertion in model container [2021-12-16 09:26:22,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:22,061 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:21" (2/3) ... [2021-12-16 09:26:22,061 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@745175a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:26:22, skipping insertion in model container [2021-12-16 09:26:22,062 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:22,062 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:22" (3/3) ... [2021-12-16 09:26:22,063 INFO L388 chiAutomizerObserver]: Analyzing ICFG Ben-Amram-2010LMCS-Ex2.3-alloca.i [2021-12-16 09:26:22,106 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:26:22,106 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:26:22,106 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:26:22,106 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:26:22,107 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:26:22,107 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:26:22,107 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:26:22,107 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:26:22,118 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) [2021-12-16 09:26:22,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:22,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:22,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:22,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-16 09:26:22,139 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:22,139 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:26:22,139 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) [2021-12-16 09:26:22,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:22,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:22,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:22,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-16 09:26:22,142 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:22,147 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 [2021-12-16 09:26:22,148 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 [2021-12-16 09:26:22,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:22,152 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-16 09:26:22,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:22,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149926028] [2021-12-16 09:26:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:22,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:22,277 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:22,305 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:22,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:22,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 1 times [2021-12-16 09:26:22,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:22,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965379721] [2021-12-16 09:26:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:22,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:22,330 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:22,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:22,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash 177626380, now seen corresponding path program 1 times [2021-12-16 09:26:22,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:22,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501301935] [2021-12-16 09:26:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:22,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:22,421 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:22,453 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:23,206 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:23,207 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:23,207 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:23,207 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:23,208 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:23,208 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:23,208 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:23,208 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:23,208 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration1_Lasso [2021-12-16 09:26:23,208 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:23,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:23,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:23,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:24,020 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:26:24,023 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:26:24,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,025 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) [2021-12-16 09:26:24,028 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 [2021-12-16 09:26:24,031 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 [2021-12-16 09:26:24,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-16 09:26:24,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,073 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) [2021-12-16 09:26:24,074 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 [2021-12-16 09:26:24,075 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 [2021-12-16 09:26:24,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,086 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,145 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 [2021-12-16 09:26:24,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,146 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) [2021-12-16 09:26:24,152 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 [2021-12-16 09:26:24,153 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 [2021-12-16 09:26:24,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,201 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 [2021-12-16 09:26:24,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,204 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) [2021-12-16 09:26:24,205 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 [2021-12-16 09:26:24,206 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 [2021-12-16 09:26:24,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,245 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 [2021-12-16 09:26:24,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,246 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) [2021-12-16 09:26:24,247 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 [2021-12-16 09:26:24,248 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 [2021-12-16 09:26:24,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:24,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,281 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) [2021-12-16 09:26:24,282 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 [2021-12-16 09:26:24,284 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 [2021-12-16 09:26:24,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,307 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 [2021-12-16 09:26:24,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,308 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) [2021-12-16 09:26:24,309 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 [2021-12-16 09:26:24,310 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 [2021-12-16 09:26:24,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,349 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 [2021-12-16 09:26:24,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,350 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) [2021-12-16 09:26:24,351 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 [2021-12-16 09:26:24,353 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 [2021-12-16 09:26:24,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,380 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 [2021-12-16 09:26:24,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,382 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) [2021-12-16 09:26:24,382 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 [2021-12-16 09:26:24,383 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 [2021-12-16 09:26:24,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,410 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 [2021-12-16 09:26:24,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,412 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) [2021-12-16 09:26:24,412 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 [2021-12-16 09:26:24,414 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 [2021-12-16 09:26:24,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,422 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,447 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 [2021-12-16 09:26:24,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,451 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) [2021-12-16 09:26:24,452 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 [2021-12-16 09:26:24,454 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 [2021-12-16 09:26:24,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-16 09:26:24,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,482 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) [2021-12-16 09:26:24,484 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 [2021-12-16 09:26:24,484 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 [2021-12-16 09:26:24,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,511 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 [2021-12-16 09:26:24,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,512 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) [2021-12-16 09:26:24,513 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 [2021-12-16 09:26:24,514 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 [2021-12-16 09:26:24,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,542 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 [2021-12-16 09:26:24,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,544 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) [2021-12-16 09:26:24,544 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 [2021-12-16 09:26:24,546 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 [2021-12-16 09:26:24,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:24,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:24,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:24,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,576 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 [2021-12-16 09:26:24,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,577 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) [2021-12-16 09:26:24,582 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 [2021-12-16 09:26:24,583 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 [2021-12-16 09:26:24,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,613 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 [2021-12-16 09:26:24,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,615 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) [2021-12-16 09:26:24,615 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 [2021-12-16 09:26:24,616 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 [2021-12-16 09:26:24,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:24,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,693 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) [2021-12-16 09:26:24,701 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 [2021-12-16 09:26:24,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,709 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 [2021-12-16 09:26:24,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,747 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 [2021-12-16 09:26:24,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,748 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) [2021-12-16 09:26:24,749 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 [2021-12-16 09:26:24,751 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 [2021-12-16 09:26:24,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,760 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:24,789 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 [2021-12-16 09:26:24,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,790 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) [2021-12-16 09:26:24,791 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 [2021-12-16 09:26:24,792 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 [2021-12-16 09:26:24,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:24,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:24,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:24,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:24,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:24,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:24,824 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:26:24,853 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-16 09:26:24,853 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-16 09:26:24,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:24,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:24,864 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) [2021-12-16 09:26:24,866 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 [2021-12-16 09:26:24,898 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:26:24,926 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:26:24,926 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:26:24,927 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 [] [2021-12-16 09:26:24,944 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 [2021-12-16 09:26:25,006 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 [2021-12-16 09:26:25,053 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2021-12-16 09:26:25,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:25,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:26:25,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:25,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-16 09:26:25,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:25,289 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 [2021-12-16 09:26:25,290 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) [2021-12-16 09:26:25,371 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 40 states and 53 transitions. Complement of second has 10 states. [2021-12-16 09:26:25,373 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 [2021-12-16 09:26:25,376 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) [2021-12-16 09:26:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-12-16 09:26:25,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-16 09:26:25,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:25,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 8 letters. Loop has 6 letters. [2021-12-16 09:26:25,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:25,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 12 letters. [2021-12-16 09:26:25,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:25,379 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 53 transitions. [2021-12-16 09:26:25,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:25,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 22 states and 31 transitions. [2021-12-16 09:26:25,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-16 09:26:25,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-16 09:26:25,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2021-12-16 09:26:25,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:25,385 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-12-16 09:26:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2021-12-16 09:26:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-12-16 09:26:25,401 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) [2021-12-16 09:26:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-12-16 09:26:25,402 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-12-16 09:26:25,402 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-12-16 09:26:25,402 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:26:25,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2021-12-16 09:26:25,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:25,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:25,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:25,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:25,403 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:25,404 INFO L791 eck$LassoCheckResult]: Stem: 213#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 214#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; 225#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; 221#L554-1 assume !main_#t~short10#1; 228#L554-3 main_#t~short12#1 := main_#t~short10#1; 227#L554-4 assume !main_#t~short12#1; 222#L554-6 [2021-12-16 09:26:25,404 INFO L793 eck$LassoCheckResult]: Loop: 222#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); 224#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; 210#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; 219#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; 215#L554-3 main_#t~short12#1 := main_#t~short10#1; 216#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; 222#L554-6 [2021-12-16 09:26:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:25,404 INFO L85 PathProgramCache]: Analyzing trace with hash 889571245, now seen corresponding path program 1 times [2021-12-16 09:26:25,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:25,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402171721] [2021-12-16 09:26:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:25,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:25,446 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:25,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:25,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:25,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1629309642, now seen corresponding path program 2 times [2021-12-16 09:26:25,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:25,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812781468] [2021-12-16 09:26:25,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:25,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:25,473 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:25,493 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:25,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:25,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2128502410, now seen corresponding path program 1 times [2021-12-16 09:26:25,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:25,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532872709] [2021-12-16 09:26:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:25,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:25,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:25,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532872709] [2021-12-16 09:26:25,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532872709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:26:25,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:26:25,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:26:25,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220795105] [2021-12-16 09:26:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:26:25,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:25,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:26:25,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:26:25,886 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) [2021-12-16 09:26:25,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:25,894 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2021-12-16 09:26:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:26:25,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2021-12-16 09:26:25,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:25,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 26 transitions. [2021-12-16 09:26:25,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-16 09:26:25,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-16 09:26:25,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2021-12-16 09:26:25,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:25,897 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-16 09:26:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2021-12-16 09:26:25,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-16 09:26:25,898 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) [2021-12-16 09:26:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-16 09:26:25,898 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-16 09:26:25,898 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-16 09:26:25,898 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 09:26:25,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-12-16 09:26:25,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:25,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:25,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:25,899 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:25,899 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:25,899 INFO L791 eck$LassoCheckResult]: Stem: 262#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 263#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; 273#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; 270#L554-1 assume !main_#t~short10#1; 264#L554-3 main_#t~short12#1 := main_#t~short10#1; 265#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; 271#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); 258#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; 259#L555-2 [2021-12-16 09:26:25,899 INFO L793 eck$LassoCheckResult]: Loop: 259#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; 268#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; 277#L554-3 main_#t~short12#1 := main_#t~short10#1; 276#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; 275#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); 274#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; 259#L555-2 [2021-12-16 09:26:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:25,899 INFO L85 PathProgramCache]: Analyzing trace with hash 179473424, now seen corresponding path program 1 times [2021-12-16 09:26:25,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:25,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65755426] [2021-12-16 09:26:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:25,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:25,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:25,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:25,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65755426] [2021-12-16 09:26:25,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65755426] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:26:25,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:26:25,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:26:25,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849802680] [2021-12-16 09:26:25,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:26:25,922 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:26:25,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:25,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 3 times [2021-12-16 09:26:25,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:25,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416752430] [2021-12-16 09:26:25,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:25,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:25,932 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:25,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:26,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:26,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 09:26:26,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 09:26:26,147 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) [2021-12-16 09:26:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:26,177 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-12-16 09:26:26,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 09:26:26,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2021-12-16 09:26:26,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:26,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 23 transitions. [2021-12-16 09:26:26,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-16 09:26:26,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-16 09:26:26,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2021-12-16 09:26:26,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:26,180 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-16 09:26:26,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2021-12-16 09:26:26,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-16 09:26:26,181 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) [2021-12-16 09:26:26,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-12-16 09:26:26,181 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-16 09:26:26,181 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-12-16 09:26:26,181 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 09:26:26,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2021-12-16 09:26:26,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:26,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:26,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:26,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:26,182 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:26,182 INFO L791 eck$LassoCheckResult]: Stem: 317#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 318#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; 328#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; 325#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; 319#L554-3 main_#t~short12#1 := main_#t~short10#1; 320#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; 326#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); 313#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; 314#L555-2 [2021-12-16 09:26:26,182 INFO L793 eck$LassoCheckResult]: Loop: 314#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; 323#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; 332#L554-3 main_#t~short12#1 := main_#t~short10#1; 331#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; 330#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); 329#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; 314#L555-2 [2021-12-16 09:26:26,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:26,182 INFO L85 PathProgramCache]: Analyzing trace with hash 177626382, now seen corresponding path program 1 times [2021-12-16 09:26:26,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:26,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372993279] [2021-12-16 09:26:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:26,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:26,214 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:26,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:26,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:26,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1097577162, now seen corresponding path program 4 times [2021-12-16 09:26:26,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:26,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331615504] [2021-12-16 09:26:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:26,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:26,251 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:26,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:26,259 INFO L85 PathProgramCache]: Analyzing trace with hash -692497897, now seen corresponding path program 1 times [2021-12-16 09:26:26,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:26,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313994626] [2021-12-16 09:26:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:26,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:26,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:26,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313994626] [2021-12-16 09:26:26,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313994626] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:26:26,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666500536] [2021-12-16 09:26:26,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:26,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:26:26,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:26,329 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:26:26,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-12-16 09:26:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:26,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-16 09:26:26,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:26,683 INFO L354 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2021-12-16 09:26:26,684 INFO L388 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 [2021-12-16 09:26:26,706 INFO L388 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 [2021-12-16 09:26:26,741 INFO L388 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 [2021-12-16 09:26:26,759 INFO L388 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 [2021-12-16 09:26:27,434 INFO L388 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 22 treesize of output 18 [2021-12-16 09:26:27,472 INFO L388 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 32 treesize of output 26 [2021-12-16 09:26:27,515 INFO L388 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 [2021-12-16 09:26:27,545 INFO L388 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 [2021-12-16 09:26:27,599 INFO L388 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 [2021-12-16 09:26:27,624 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:27,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 120 [2021-12-16 09:26:28,467 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:28,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 174 treesize of output 152 [2021-12-16 09:26:28,802 INFO L388 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 33 treesize of output 25 [2021-12-16 09:26:28,909 INFO L388 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 33 treesize of output 25 [2021-12-16 09:26:29,121 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-12-16 09:26:29,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 124 treesize of output 126 [2021-12-16 09:26:29,562 INFO L388 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 [2021-12-16 09:26:29,752 INFO L388 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 [2021-12-16 09:26:30,018 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:30,018 INFO L388 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 38 treesize of output 38 [2021-12-16 09:26:30,050 INFO L388 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 [2021-12-16 09:26:30,340 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:30,341 INFO L388 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 43 treesize of output 35 [2021-12-16 09:26:30,349 INFO L388 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 30 treesize of output 24 [2021-12-16 09:26:30,429 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-12-16 09:26:30,430 INFO L388 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 50 treesize of output 40 [2021-12-16 09:26:30,436 INFO L388 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 30 treesize of output 24 [2021-12-16 09:26:30,485 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:30,485 INFO L388 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 31 treesize of output 35 [2021-12-16 09:26:30,506 INFO L388 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 [2021-12-16 09:26:30,587 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:30,587 INFO L388 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 43 treesize of output 35 [2021-12-16 09:26:30,592 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:30,592 INFO L388 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 26 [2021-12-16 09:26:30,597 INFO L388 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 21 treesize of output 17 [2021-12-16 09:26:30,599 INFO L388 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 [2021-12-16 09:26:30,607 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:30,607 INFO L388 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 26 [2021-12-16 09:26:30,618 INFO L388 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 21 treesize of output 17 [2021-12-16 09:26:30,649 INFO L388 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 [2021-12-16 09:26:30,716 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:30,717 INFO L388 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 [2021-12-16 09:26:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:30,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:26:30,809 INFO L388 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 [2021-12-16 09:26:30,827 INFO L388 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 [2021-12-16 09:26:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:30,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666500536] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:26:30,858 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:26:30,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2021-12-16 09:26:30,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916611150] [2021-12-16 09:26:30,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:26:31,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:31,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 09:26:31,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-16 09:26:31,042 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) [2021-12-16 09:26:31,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:31,097 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-12-16 09:26:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:26:31,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2021-12-16 09:26:31,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:31,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2021-12-16 09:26:31,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-16 09:26:31,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-16 09:26:31,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-12-16 09:26:31,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:31,100 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-12-16 09:26:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-12-16 09:26:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-12-16 09:26:31,102 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) [2021-12-16 09:26:31,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-16 09:26:31,103 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-16 09:26:31,103 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-16 09:26:31,103 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-16 09:26:31,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-12-16 09:26:31,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:31,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:31,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:31,104 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 09:26:31,104 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:31,104 INFO L791 eck$LassoCheckResult]: Stem: 456#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 457#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~mem15#1, main_#t~nondet16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~nondet19#1, main_#t~mem20#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_#t~mem11#1, main_#t~short12#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~z~0#1.base, main_~z~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~z~0#1.base, main_~z~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(main_#t~nondet5#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet5#1;call write~int(main_#t~nondet6#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet6#1;call write~int(main_#t~nondet7#1, main_~z~0#1.base, main_~z~0#1.offset, 4);havoc main_#t~nondet7#1; 466#L555-2 call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short10#1 := main_#t~mem8#1 > 0; 462#L554-1 [2021-12-16 09:26:31,104 INFO L793 eck$LassoCheckResult]: Loop: 462#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; 458#L554-3 main_#t~short12#1 := main_#t~short10#1; 459#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; 464#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); 452#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; 453#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; 462#L554-1 [2021-12-16 09:26:31,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-16 09:26:31,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:31,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545505187] [2021-12-16 09:26:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:31,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:31,116 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:31,125 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:31,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 1 times [2021-12-16 09:26:31,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:31,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639398677] [2021-12-16 09:26:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:31,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:31,141 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:31,158 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:31,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450553, now seen corresponding path program 2 times [2021-12-16 09:26:31,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:31,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755591247] [2021-12-16 09:26:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:31,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:31,191 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:31,216 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:31,860 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:31,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:31,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:31,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:31,860 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:31,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:31,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:31,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:31,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration5_Lasso [2021-12-16 09:26:31,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:31,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:31,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:31,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:32,860 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:26:32,860 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:26:32,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:32,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:32,861 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2021-12-16 09:26:32,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-16 09:26:32,863 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 [2021-12-16 09:26:32,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:32,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:32,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:32,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:32,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:32,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:32,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:32,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:32,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-16 09:26:32,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:32,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:32,898 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) [2021-12-16 09:26:32,899 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 [2021-12-16 09:26:32,900 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 [2021-12-16 09:26:32,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:32,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:32,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:32,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:32,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:32,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:32,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:32,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-16 09:26:32,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:32,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:32,931 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) [2021-12-16 09:26:32,931 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 [2021-12-16 09:26:32,932 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 [2021-12-16 09:26:32,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:32,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:32,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:32,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:32,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:32,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:32,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:32,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:32,969 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 [2021-12-16 09:26:32,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:32,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:32,970 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) [2021-12-16 09:26:32,971 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 [2021-12-16 09:26:32,972 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 [2021-12-16 09:26:32,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:32,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:32,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:32,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:32,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:32,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:32,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:33,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,039 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 [2021-12-16 09:26:33,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,040 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) [2021-12-16 09:26:33,041 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 [2021-12-16 09:26:33,042 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 [2021-12-16 09:26:33,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:33,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:33,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:33,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,064 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 [2021-12-16 09:26:33,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,065 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) [2021-12-16 09:26:33,066 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 [2021-12-16 09:26:33,067 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 [2021-12-16 09:26:33,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-16 09:26:33,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,098 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) [2021-12-16 09:26:33,099 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 [2021-12-16 09:26:33,101 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 [2021-12-16 09:26:33,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:33,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:33,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:33,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-16 09:26:33,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,139 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) [2021-12-16 09:26:33,140 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 [2021-12-16 09:26:33,142 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 [2021-12-16 09:26:33,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-16 09:26:33,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,173 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) [2021-12-16 09:26:33,174 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 [2021-12-16 09:26:33,177 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 [2021-12-16 09:26:33,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:33,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:33,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:33,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,214 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 [2021-12-16 09:26:33,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,215 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) [2021-12-16 09:26:33,216 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 [2021-12-16 09:26:33,217 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 [2021-12-16 09:26:33,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,223 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:33,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:33,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:33,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-16 09:26:33,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,254 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) [2021-12-16 09:26:33,256 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 [2021-12-16 09:26:33,257 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 [2021-12-16 09:26:33,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-16 09:26:33,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,281 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) [2021-12-16 09:26:33,282 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 [2021-12-16 09:26:33,283 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 [2021-12-16 09:26:33,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,328 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 [2021-12-16 09:26:33,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,329 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) [2021-12-16 09:26:33,330 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 [2021-12-16 09:26:33,332 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 [2021-12-16 09:26:33,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,339 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-16 09:26:33,339 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-16 09:26:33,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,350 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-12-16 09:26:33,350 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-16 09:26:33,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:33,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,436 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) [2021-12-16 09:26:33,437 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 [2021-12-16 09:26:33,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,437 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 [2021-12-16 09:26:33,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:33,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,471 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) [2021-12-16 09:26:33,472 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 [2021-12-16 09:26:33,473 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 [2021-12-16 09:26:33,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,512 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 [2021-12-16 09:26:33,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,514 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) [2021-12-16 09:26:33,515 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 [2021-12-16 09:26:33,516 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 [2021-12-16 09:26:33,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:33,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:33,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,560 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) [2021-12-16 09:26:33,575 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 [2021-12-16 09:26:33,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:33,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:33,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:33,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:33,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:33,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:33,585 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 [2021-12-16 09:26:33,594 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:26:33,599 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-16 09:26:33,599 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-16 09:26:33,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:33,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:33,600 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) [2021-12-16 09:26:33,603 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:26:33,612 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 [2021-12-16 09:26:33,621 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:26:33,621 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:26:33,621 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 [] [2021-12-16 09:26:33,638 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 [2021-12-16 09:26:33,687 INFO L297 tatePredicateManager]: 21 out of 24 supporting invariants were superfluous and have been removed [2021-12-16 09:26:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:33,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 09:26:33,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:33,735 INFO L388 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 [2021-12-16 09:26:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:33,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-16 09:26:33,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:33,845 INFO L388 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 [2021-12-16 09:26:33,855 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-16 09:26:33,858 INFO L388 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 [2021-12-16 09:26:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:33,881 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 [2021-12-16 09:26:33,881 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) [2021-12-16 09:26:33,925 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. [2021-12-16 09:26:33,928 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 [2021-12-16 09:26:33,929 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) [2021-12-16 09:26:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2021-12-16 09:26:33,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-16 09:26:33,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:33,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-16 09:26:33,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:33,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 3 letters. Loop has 12 letters. [2021-12-16 09:26:33,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:33,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 40 transitions. [2021-12-16 09:26:33,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:33,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 20 states and 21 transitions. [2021-12-16 09:26:33,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-16 09:26:33,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-16 09:26:33,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 21 transitions. [2021-12-16 09:26:33,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:33,932 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-12-16 09:26:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 21 transitions. [2021-12-16 09:26:33,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-12-16 09:26:33,933 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) [2021-12-16 09:26:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-12-16 09:26:33,933 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-16 09:26:33,933 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-12-16 09:26:33,933 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-16 09:26:33,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-12-16 09:26:33,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:33,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:33,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:33,934 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:33,934 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:33,934 INFO L791 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 668#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; 673#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; 674#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; 671#L554-3 main_#t~short12#1 := main_#t~short10#1; 672#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; 677#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); 665#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; 666#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; 675#L554-1 [2021-12-16 09:26:33,934 INFO L793 eck$LassoCheckResult]: Loop: 675#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; 669#L554-3 main_#t~short12#1 := main_#t~short10#1; 670#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; 676#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); 663#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; 664#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; 675#L554-1 [2021-12-16 09:26:33,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:33,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450491, now seen corresponding path program 2 times [2021-12-16 09:26:33,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:33,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67554810] [2021-12-16 09:26:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:33,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,962 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:33,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:33,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1187255894, now seen corresponding path program 2 times [2021-12-16 09:26:33,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:33,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330758100] [2021-12-16 09:26:33,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:33,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,979 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:33,999 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:34,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:34,000 INFO L85 PathProgramCache]: Analyzing trace with hash 816748368, now seen corresponding path program 2 times [2021-12-16 09:26:34,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:34,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890984640] [2021-12-16 09:26:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:34,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,034 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:34,047 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:35,050 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 [2021-12-16 09:26:35,464 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:35,464 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:35,465 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:35,465 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:35,465 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:35,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:35,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:35,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:35,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ben-Amram-2010LMCS-Ex2.3-alloca.i_Iteration6_Lasso [2021-12-16 09:26:35,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:35,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:35,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:36,620 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:26:36,620 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:26:36,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:36,621 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) [2021-12-16 09:26:36,622 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 [2021-12-16 09:26:36,623 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 [2021-12-16 09:26:36,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:36,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:36,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:36,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:36,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:36,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:36,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:36,654 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 [2021-12-16 09:26:36,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:36,655 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) [2021-12-16 09:26:36,657 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 [2021-12-16 09:26:36,659 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 [2021-12-16 09:26:36,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:36,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:36,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:36,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:36,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:36,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:36,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:36,708 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 [2021-12-16 09:26:36,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:36,709 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) [2021-12-16 09:26:36,709 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 [2021-12-16 09:26:36,711 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 [2021-12-16 09:26:36,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:36,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:36,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:36,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:36,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:36,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:36,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:36,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:36,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:36,742 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) [2021-12-16 09:26:36,743 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 [2021-12-16 09:26:36,744 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 [2021-12-16 09:26:36,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:36,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:36,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:36,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:36,751 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:36,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:36,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:36,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-16 09:26:36,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:36,782 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) [2021-12-16 09:26:36,783 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 [2021-12-16 09:26:36,784 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 [2021-12-16 09:26:36,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:36,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:36,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:36,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:36,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:36,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:36,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:36,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:36,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:36,811 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) [2021-12-16 09:26:36,811 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 [2021-12-16 09:26:36,816 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 [2021-12-16 09:26:36,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:36,822 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-16 09:26:36,822 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-16 09:26:36,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:36,835 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-12-16 09:26:36,836 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-16 09:26:36,868 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:26:36,903 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-12-16 09:26:36,903 INFO L444 ModelExtractionUtils]: 18 out of 36 variables were initially zero. Simplification set additionally 16 variables to zero. [2021-12-16 09:26:36,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:36,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:36,904 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) [2021-12-16 09:26:36,904 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 [2021-12-16 09:26:36,906 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:26:36,915 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2021-12-16 09:26:36,915 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:26:36,915 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 [] [2021-12-16 09:26:36,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-16 09:26:36,980 INFO L297 tatePredicateManager]: 21 out of 24 supporting invariants were superfluous and have been removed [2021-12-16 09:26:36,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:37,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 09:26:37,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:37,062 INFO L388 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 [2021-12-16 09:26:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:37,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-16 09:26:37,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:37,225 INFO L388 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 [2021-12-16 09:26:37,235 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-16 09:26:37,236 INFO L388 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 [2021-12-16 09:26:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:37,258 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 [2021-12-16 09:26:37,259 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) [2021-12-16 09:26:37,288 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. [2021-12-16 09:26:37,289 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 [2021-12-16 09:26:37,290 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) [2021-12-16 09:26:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-16 09:26:37,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-16 09:26:37,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:37,290 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-16 09:26:37,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:37,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-16 09:26:37,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:37,354 INFO L388 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 [2021-12-16 09:26:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:37,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-16 09:26:37,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:37,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:37,539 INFO L388 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 [2021-12-16 09:26:37,553 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-16 09:26:37,554 INFO L388 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 [2021-12-16 09:26:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:37,575 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 [2021-12-16 09:26:37,575 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) [2021-12-16 09:26:37,624 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. [2021-12-16 09:26:37,625 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 [2021-12-16 09:26:37,626 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) [2021-12-16 09:26:37,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-16 09:26:37,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 7 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-16 09:26:37,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:37,626 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-16 09:26:37,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:37,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-16 09:26:37,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:37,687 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-16 09:26:37,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-12-16 09:26:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:37,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:26:37,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:37,881 INFO L388 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 [2021-12-16 09:26:37,892 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-12-16 09:26:37,892 INFO L388 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 [2021-12-16 09:26:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:37,913 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 [2021-12-16 09:26:37,914 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) [2021-12-16 09:26:37,967 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. [2021-12-16 09:26:37,968 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 [2021-12-16 09:26:37,968 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) [2021-12-16 09:26:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2021-12-16 09:26:37,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-16 09:26:37,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:37,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 15 letters. Loop has 6 letters. [2021-12-16 09:26:37,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:37,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 9 letters. Loop has 12 letters. [2021-12-16 09:26:37,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:37,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 28 transitions. [2021-12-16 09:26:37,971 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:26:37,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2021-12-16 09:26:37,971 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 09:26:37,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 09:26:37,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 09:26:37,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:26:37,971 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:26:37,971 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:26:37,971 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:26:37,971 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-16 09:26:37,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 09:26:37,971 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:26:37,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 09:26:37,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:26:37 BoogieIcfgContainer [2021-12-16 09:26:37,976 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:26:37,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:26:37,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:26:37,977 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:26:37,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:22" (3/4) ... [2021-12-16 09:26:37,979 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 09:26:37,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:26:37,980 INFO L158 Benchmark]: Toolchain (without parser) took 16632.66ms. Allocated memory was 86.0MB in the beginning and 197.1MB in the end (delta: 111.1MB). Free memory was 52.4MB in the beginning and 106.1MB in the end (delta: -53.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2021-12-16 09:26:37,980 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 86.0MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:26:37,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.45ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 52.2MB in the beginning and 84.7MB in the end (delta: -32.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-12-16 09:26:37,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.26ms. Allocated memory is still 113.2MB. Free memory was 84.7MB in the beginning and 82.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:26:37,980 INFO L158 Benchmark]: Boogie Preprocessor took 29.51ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:26:37,980 INFO L158 Benchmark]: RCFGBuilder took 304.33ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 70.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 09:26:37,981 INFO L158 Benchmark]: BuchiAutomizer took 15924.95ms. Allocated memory was 113.2MB in the beginning and 197.1MB in the end (delta: 83.9MB). Free memory was 70.0MB in the beginning and 106.1MB in the end (delta: -36.0MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2021-12-16 09:26:37,981 INFO L158 Benchmark]: Witness Printer took 2.50ms. Allocated memory is still 197.1MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:26:37,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 86.0MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.45ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 52.2MB in the beginning and 84.7MB in the end (delta: -32.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.26ms. Allocated memory is still 113.2MB. Free memory was 84.7MB in the beginning and 82.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.51ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.33ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 70.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 15924.95ms. Allocated memory was 113.2MB in the beginning and 197.1MB in the end (delta: 83.9MB). Free memory was 70.0MB in the beginning and 106.1MB in the end (delta: -36.0MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 2.50ms. Allocated memory is still 197.1MB. Free memory is still 106.1MB. 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 -1 * unknown-#memory_int-unknown[x][x] + unknown-#memory_int-unknown[z][z] + unknown-#memory_int-unknown[y][y] 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 15.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 14.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.5s. 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, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 151 IncrementalHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 47 mSDtfsCounter, 151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital557 mio100 ax104 hnf100 lsp95 ukn57 mio100 lsp30 div100 bol104 ite100 ukn100 eq173 hnf88 smp95 dnf206 smp66 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms 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! [2021-12-16 09:26:38,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-12-16 09:26:38,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE