./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/twisted-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 e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 19:54:12,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 19:54:12,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 19:54:12,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 19:54:12,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 19:54:12,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 19:54:12,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 19:54:12,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 19:54:12,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 19:54:12,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 19:54:12,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 19:54:12,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 19:54:12,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 19:54:12,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 19:54:12,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 19:54:12,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 19:54:12,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 19:54:12,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 19:54:12,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 19:54:12,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 19:54:12,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 19:54:12,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 19:54:12,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 19:54:12,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 19:54:12,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 19:54:12,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 19:54:12,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 19:54:12,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 19:54:12,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 19:54:12,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 19:54:12,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 19:54:12,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 19:54:12,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 19:54:12,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 19:54:12,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 19:54:12,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 19:54:12,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 19:54:12,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 19:54:12,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 19:54:12,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 19:54:12,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 19:54:12,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-22 19:54:12,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 19:54:12,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 19:54:12,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 19:54:12,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 19:54:12,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 19:54:12,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 19:54:12,759 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 19:54:12,759 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 19:54:12,759 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 19:54:12,759 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 19:54:12,760 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 19:54:12,760 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 19:54:12,760 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 19:54:12,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 19:54:12,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 19:54:12,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 19:54:12,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 19:54:12,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 19:54:12,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 19:54:12,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 19:54:12,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 19:54:12,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 19:54:12,762 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 19:54:12,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6 [2021-12-22 19:54:13,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 19:54:13,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 19:54:13,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 19:54:13,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 19:54:13,080 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 19:54:13,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-12-22 19:54:13,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312c0aa9e/e3befd2af2574dcc81d16a2a7949248d/FLAG5dd4d1c74 [2021-12-22 19:54:13,553 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 19:54:13,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-12-22 19:54:13,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312c0aa9e/e3befd2af2574dcc81d16a2a7949248d/FLAG5dd4d1c74 [2021-12-22 19:54:13,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312c0aa9e/e3befd2af2574dcc81d16a2a7949248d [2021-12-22 19:54:13,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 19:54:13,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 19:54:13,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 19:54:13,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 19:54:13,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 19:54:13,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2167ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13, skipping insertion in model container [2021-12-22 19:54:13,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 19:54:13,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 19:54:13,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:54:13,850 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 19:54:13,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:54:13,892 INFO L208 MainTranslator]: Completed translation [2021-12-22 19:54:13,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13 WrapperNode [2021-12-22 19:54:13,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 19:54:13,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 19:54:13,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 19:54:13,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 19:54:13,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,923 INFO L137 Inliner]: procedures = 111, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2021-12-22 19:54:13,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 19:54:13,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 19:54:13,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 19:54:13,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 19:54:13,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 19:54:13,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 19:54:13,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 19:54:13,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 19:54:13,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (1/1) ... [2021-12-22 19:54:13,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:13,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:13,983 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) [2021-12-22 19:54:14,002 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 [2021-12-22 19:54:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 19:54:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 19:54:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 19:54:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 19:54:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 19:54:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 19:54:14,095 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 19:54:14,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 19:54:14,213 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 19:54:14,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 19:54:14,216 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 19:54:14,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:54:14 BoogieIcfgContainer [2021-12-22 19:54:14,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 19:54:14,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 19:54:14,219 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 19:54:14,221 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 19:54:14,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:54:14,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 07:54:13" (1/3) ... [2021-12-22 19:54:14,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@238cb382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:54:14, skipping insertion in model container [2021-12-22 19:54:14,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:54:14,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:54:13" (2/3) ... [2021-12-22 19:54:14,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@238cb382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:54:14, skipping insertion in model container [2021-12-22 19:54:14,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:54:14,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:54:14" (3/3) ... [2021-12-22 19:54:14,224 INFO L388 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2021-12-22 19:54:14,265 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 19:54:14,267 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 19:54:14,267 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 19:54:14,267 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 19:54:14,267 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 19:54:14,267 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 19:54:14,268 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 19:54:14,268 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 19:54:14,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-12-22 19:54:14,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-22 19:54:14,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:14,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:14,302 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:54:14,302 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:54:14,302 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 19:54:14,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-12-22 19:54:14,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-22 19:54:14,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:14,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:14,305 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:54:14,305 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:54:14,311 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 3#L569true [2021-12-22 19:54:14,311 INFO L793 eck$LassoCheckResult]: Loop: 3#L569true assume !true; 13#L564true goto; 12#L567true call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 8#L564-1true assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 10#L566true assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 3#L569true [2021-12-22 19:54:14,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-22 19:54:14,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:14,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812594373] [2021-12-22 19:54:14,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:14,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:14,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:14,589 INFO L85 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2021-12-22 19:54:14,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:14,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281567872] [2021-12-22 19:54:14,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:14,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:14,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:54:14,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281567872] [2021-12-22 19:54:14,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281567872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:54:14,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:54:14,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-22 19:54:14,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285004696] [2021-12-22 19:54:14,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:54:14,642 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 19:54:14,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:54:14,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-22 19:54:14,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-22 19:54:14,672 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 1 states have internal predecessors, (5), 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) [2021-12-22 19:54:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:54:14,676 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-12-22 19:54:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-22 19:54:14,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-12-22 19:54:14,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-22 19:54:14,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-12-22 19:54:14,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-22 19:54:14,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-22 19:54:14,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-12-22 19:54:14,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:54:14,689 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-22 19:54:14,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-12-22 19:54:14,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-22 19:54:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2021-12-22 19:54:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-12-22 19:54:14,706 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-22 19:54:14,706 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-12-22 19:54:14,706 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 19:54:14,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-12-22 19:54:14,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-22 19:54:14,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:14,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:14,708 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:54:14,708 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:54:14,708 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 38#L569 [2021-12-22 19:54:14,708 INFO L793 eck$LassoCheckResult]: Loop: 38#L569 goto; 39#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 44#L557-1 assume !(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1; 43#L564 goto; 45#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 46#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 47#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 38#L569 [2021-12-22 19:54:14,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-22 19:54:14,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:14,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337026316] [2021-12-22 19:54:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:14,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,750 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:14,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2021-12-22 19:54:14,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:14,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726630633] [2021-12-22 19:54:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:14,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,789 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:14,805 INFO L85 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2021-12-22 19:54:14,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:14,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917692502] [2021-12-22 19:54:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:14,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,863 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:14,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:16,256 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:54:16,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:54:16,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:54:16,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:54:16,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:54:16,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:16,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:54:16,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:54:16,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2021-12-22 19:54:16,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:54:16,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:54:16,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:16,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:16,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:16,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:16,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:16,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:16,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:16,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:17,559 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:54:17,562 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:54:17,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,582 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) [2021-12-22 19:54:17,588 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 [2021-12-22 19:54:17,589 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 [2021-12-22 19:54:17,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:17,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:17,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:17,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,626 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 [2021-12-22 19:54:17,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,628 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) [2021-12-22 19:54:17,629 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 [2021-12-22 19:54:17,631 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 [2021-12-22 19:54:17,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:17,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:17,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:17,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-22 19:54:17,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,688 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) [2021-12-22 19:54:17,689 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 [2021-12-22 19:54:17,690 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 [2021-12-22 19:54:17,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:17,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:17,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,730 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 [2021-12-22 19:54:17,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,745 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) [2021-12-22 19:54:17,746 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 [2021-12-22 19:54:17,748 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 [2021-12-22 19:54:17,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:17,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:17,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,780 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 [2021-12-22 19:54:17,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,782 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) [2021-12-22 19:54:17,782 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 [2021-12-22 19:54:17,784 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 [2021-12-22 19:54:17,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:17,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:17,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,822 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 [2021-12-22 19:54:17,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,824 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) [2021-12-22 19:54:17,825 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 [2021-12-22 19:54:17,826 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 [2021-12-22 19:54:17,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:17,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:17,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:17,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,849 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 [2021-12-22 19:54:17,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,851 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) [2021-12-22 19:54:17,852 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 [2021-12-22 19:54:17,853 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 [2021-12-22 19:54:17,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:17,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:17,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:17,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,881 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 [2021-12-22 19:54:17,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,882 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) [2021-12-22 19:54:17,883 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 [2021-12-22 19:54:17,885 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 [2021-12-22 19:54:17,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:17,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:17,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,925 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 [2021-12-22 19:54:17,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,927 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) [2021-12-22 19:54:17,928 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 [2021-12-22 19:54:17,929 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 [2021-12-22 19:54:17,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:17,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:17,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:17,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:17,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:17,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:17,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:17,996 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 [2021-12-22 19:54:17,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:17,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:17,998 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) [2021-12-22 19:54:18,000 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 [2021-12-22 19:54:18,001 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 [2021-12-22 19:54:18,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:18,042 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 [2021-12-22 19:54:18,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,044 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) [2021-12-22 19:54:18,045 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 [2021-12-22 19:54:18,046 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 [2021-12-22 19:54:18,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,077 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:18,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:18,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,095 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) [2021-12-22 19:54:18,096 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 [2021-12-22 19:54:18,103 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 [2021-12-22 19:54:18,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:18,145 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 [2021-12-22 19:54:18,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,147 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) [2021-12-22 19:54:18,148 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 [2021-12-22 19:54:18,149 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 [2021-12-22 19:54:18,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:18,203 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 [2021-12-22 19:54:18,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,204 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) [2021-12-22 19:54:18,205 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 [2021-12-22 19:54:18,207 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 [2021-12-22 19:54:18,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:18,250 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 [2021-12-22 19:54:18,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,253 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) [2021-12-22 19:54:18,254 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 [2021-12-22 19:54:18,255 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 [2021-12-22 19:54:18,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:18,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:18,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,306 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) [2021-12-22 19:54:18,307 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 [2021-12-22 19:54:18,309 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 [2021-12-22 19:54:18,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:18,353 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 [2021-12-22 19:54:18,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,354 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) [2021-12-22 19:54:18,383 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 [2021-12-22 19:54:18,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:18,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:18,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:18,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:18,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:18,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:18,397 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 [2021-12-22 19:54:18,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:54:18,434 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-22 19:54:18,434 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-12-22 19:54:18,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:18,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:18,447 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) [2021-12-22 19:54:18,481 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 [2021-12-22 19:54:18,482 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:54:18,511 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 19:54:18,511 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:54:18,512 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0#1.base) ULTIMATE.start_f_~j~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0#1.base) ULTIMATE.start_f_~j~0#1.offset)_1 + 1 Supporting invariants [] [2021-12-22 19:54:18,530 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 [2021-12-22 19:54:18,705 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 [2021-12-22 19:54:18,718 INFO L297 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2021-12-22 19:54:18,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:18,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:54:18,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:18,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 19:54:18,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:18,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2021-12-22 19:54:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:18,858 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 [2021-12-22 19:54:18,859 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2021-12-22 19:54:18,886 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 20 states and 27 transitions. Complement of second has 6 states. [2021-12-22 19:54:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 19:54:18,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2021-12-22 19:54:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-22 19:54:18,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2021-12-22 19:54:18,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:18,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2021-12-22 19:54:18,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:18,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2021-12-22 19:54:18,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:18,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-12-22 19:54:18,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:18,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2021-12-22 19:54:18,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-22 19:54:18,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-22 19:54:18,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-12-22 19:54:18,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:54:18,892 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-12-22 19:54:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-12-22 19:54:18,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-12-22 19:54:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-12-22 19:54:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-12-22 19:54:18,893 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-22 19:54:18,893 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-22 19:54:18,893 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 19:54:18,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-12-22 19:54:18,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:18,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:18,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:18,894 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-22 19:54:18,894 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-22 19:54:18,894 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 297#L569 goto; 284#L560 [2021-12-22 19:54:18,894 INFO L793 eck$LassoCheckResult]: Loop: 284#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 292#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 289#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 284#L560 [2021-12-22 19:54:18,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-12-22 19:54:18,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:18,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209927614] [2021-12-22 19:54:18,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:18,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:18,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:18,941 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:18,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:18,942 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-12-22 19:54:18,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:18,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064934005] [2021-12-22 19:54:18,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:18,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:18,947 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:18,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:18,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:18,952 INFO L85 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2021-12-22 19:54:18,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:18,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332089] [2021-12-22 19:54:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:18,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:18,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:18,977 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:20,007 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:54:20,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:54:20,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:54:20,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:54:20,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:54:20,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:20,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:54:20,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:54:20,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2021-12-22 19:54:20,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:54:20,007 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:54:20,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:20,868 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:54:20,869 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:54:20,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:20,875 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) [2021-12-22 19:54:20,878 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 [2021-12-22 19:54:20,878 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 [2021-12-22 19:54:20,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:20,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:20,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:20,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:20,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:20,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:20,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:20,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:20,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-22 19:54:20,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:20,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:20,906 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) [2021-12-22 19:54:20,912 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 [2021-12-22 19:54:20,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:20,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:20,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:20,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:20,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:20,919 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 [2021-12-22 19:54:20,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:20,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:20,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:20,953 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 [2021-12-22 19:54:20,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:20,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:20,954 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:54:20,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-22 19:54:20,956 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 [2021-12-22 19:54:20,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:20,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:20,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:20,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:20,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:20,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,020 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) [2021-12-22 19:54:21,021 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 [2021-12-22 19:54:21,022 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 [2021-12-22 19:54:21,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,065 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) [2021-12-22 19:54:21,066 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 [2021-12-22 19:54:21,067 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 [2021-12-22 19:54:21,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:21,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:21,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:21,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,107 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) [2021-12-22 19:54:21,108 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 [2021-12-22 19:54:21,109 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 [2021-12-22 19:54:21,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:21,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:21,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:21,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,141 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) [2021-12-22 19:54:21,142 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 [2021-12-22 19:54:21,144 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 [2021-12-22 19:54:21,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,185 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) [2021-12-22 19:54:21,186 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 [2021-12-22 19:54:21,188 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 [2021-12-22 19:54:21,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,264 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) [2021-12-22 19:54:21,265 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 [2021-12-22 19:54:21,267 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 [2021-12-22 19:54:21,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,328 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,329 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) [2021-12-22 19:54:21,330 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 [2021-12-22 19:54:21,331 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 [2021-12-22 19:54:21,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,361 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 [2021-12-22 19:54:21,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,362 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) [2021-12-22 19:54:21,363 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 [2021-12-22 19:54:21,365 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 [2021-12-22 19:54:21,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,389 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 [2021-12-22 19:54:21,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,390 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) [2021-12-22 19:54:21,391 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 [2021-12-22 19:54:21,392 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 [2021-12-22 19:54:21,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,430 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 [2021-12-22 19:54:21,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,432 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) [2021-12-22 19:54:21,432 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 [2021-12-22 19:54:21,433 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 [2021-12-22 19:54:21,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,472 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 [2021-12-22 19:54:21,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,475 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) [2021-12-22 19:54:21,476 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 [2021-12-22 19:54:21,478 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 [2021-12-22 19:54:21,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:21,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:21,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,524 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) [2021-12-22 19:54:21,525 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 [2021-12-22 19:54:21,527 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 [2021-12-22 19:54:21,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:21,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:21,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:21,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:21,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:21,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:21,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:54:21,571 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-22 19:54:21,571 INFO L444 ModelExtractionUtils]: 6 out of 19 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-12-22 19:54:21,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:21,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:21,578 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) [2021-12-22 19:54:21,579 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 [2021-12-22 19:54:21,580 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:54:21,588 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-22 19:54:21,588 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:54:21,588 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_2, ULTIMATE.start_f_~k#1) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_2 + 1*ULTIMATE.start_f_~k#1 Supporting invariants [1*ULTIMATE.start_f_~k#1 - 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0#1.base) ULTIMATE.start_f_~k_ref~0#1.offset)_2 >= 0] [2021-12-22 19:54:21,612 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 [2021-12-22 19:54:21,764 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 [2021-12-22 19:54:21,770 INFO L297 tatePredicateManager]: 36 out of 37 supporting invariants were superfluous and have been removed [2021-12-22 19:54:21,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:21,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 36 conjunts are in the unsatisfiable core [2021-12-22 19:54:21,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:21,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 20 treesize of output 20 [2021-12-22 19:54:21,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:54:21,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:54:21,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:54:21,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:54:21,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:54:21,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:54:21,869 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 26 [2021-12-22 19:54:21,877 INFO L353 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-12-22 19:54:21,877 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 40 treesize of output 34 [2021-12-22 19:54:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:21,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-22 19:54:21,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:21,951 INFO L353 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-12-22 19:54:21,952 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 40 [2021-12-22 19:54:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:21,982 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-22 19:54:21,982 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-12-22 19:54:22,022 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 43 transitions. Complement of second has 8 states. [2021-12-22 19:54:22,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 19:54:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2021-12-22 19:54:22,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-12-22 19:54:22,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-22 19:54:22,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:22,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-22 19:54:22,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:22,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-22 19:54:22,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:22,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2021-12-22 19:54:22,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:22,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2021-12-22 19:54:22,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-22 19:54:22,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-22 19:54:22,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-12-22 19:54:22,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:54:22,025 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-12-22 19:54:22,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-12-22 19:54:22,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-12-22 19:54:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 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) [2021-12-22 19:54:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-12-22 19:54:22,027 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-12-22 19:54:22,027 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-12-22 19:54:22,027 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-22 19:54:22,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2021-12-22 19:54:22,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:22,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:22,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:22,029 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:54:22,029 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-22 19:54:22,029 INFO L791 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 536#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 531#L569 goto; 532#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 548#L557-1 assume !(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1; 540#L564 goto; 545#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 546#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 547#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 549#L569 goto; 538#L560 [2021-12-22 19:54:22,029 INFO L793 eck$LassoCheckResult]: Loop: 538#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 543#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 537#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 538#L560 [2021-12-22 19:54:22,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:22,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2021-12-22 19:54:22,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:22,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169697626] [2021-12-22 19:54:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:22,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:22,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:22,063 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:22,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:22,063 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2021-12-22 19:54:22,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:22,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272410154] [2021-12-22 19:54:22,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:22,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:22,067 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:22,071 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:22,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:22,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2021-12-22 19:54:22,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:22,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576352638] [2021-12-22 19:54:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:22,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:22,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:22,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:54:22,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576352638] [2021-12-22 19:54:22,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576352638] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:54:22,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739764360] [2021-12-22 19:54:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:22,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:54:22,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:22,187 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 19:54:22,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-12-22 19:54:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:22,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-22 19:54:22,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:22,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-12-22 19:54:22,427 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-22 19:54:22,428 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2021-12-22 19:54:22,462 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-22 19:54:22,462 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2021-12-22 19:54:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:22,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:54:22,618 INFO L353 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-12-22 19:54:22,619 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 53 [2021-12-22 19:54:22,632 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-22 19:54:22,632 INFO L387 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 50 treesize of output 50 [2021-12-22 19:54:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:22,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739764360] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:54:22,701 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:54:22,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-12-22 19:54:22,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808618649] [2021-12-22 19:54:22,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:54:22,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:54:22,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-22 19:54:22,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=134, Unknown=2, NotChecked=0, Total=182 [2021-12-22 19:54:22,786 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 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) [2021-12-22 19:54:22,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:54:22,912 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2021-12-22 19:54:22,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 19:54:22,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2021-12-22 19:54:22,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:22,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2021-12-22 19:54:22,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-22 19:54:22,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-22 19:54:22,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-12-22 19:54:22,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:54:22,917 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-12-22 19:54:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-12-22 19:54:22,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-12-22 19:54:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 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) [2021-12-22 19:54:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-12-22 19:54:22,921 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-12-22 19:54:22,921 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-12-22 19:54:22,921 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-22 19:54:22,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2021-12-22 19:54:22,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:22,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:22,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:22,922 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:54:22,922 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-22 19:54:22,923 INFO L791 eck$LassoCheckResult]: Stem: 694#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 695#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 691#L569 goto; 692#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 701#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 698#L559 assume !(0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2));havoc f_#t~mem10#1; 699#L564 goto; 702#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 703#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 704#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 705#L569 goto; 697#L560 [2021-12-22 19:54:22,923 INFO L793 eck$LassoCheckResult]: Loop: 697#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 700#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 696#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 697#L560 [2021-12-22 19:54:22,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:22,923 INFO L85 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2021-12-22 19:54:22,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:22,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713088877] [2021-12-22 19:54:22,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:22,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:23,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:54:23,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713088877] [2021-12-22 19:54:23,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713088877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:54:23,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:54:23,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 19:54:23,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603377166] [2021-12-22 19:54:23,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:54:23,025 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-22 19:54:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2021-12-22 19:54:23,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:23,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935593591] [2021-12-22 19:54:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:23,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,033 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:23,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:54:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 19:54:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 19:54:23,123 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-12-22 19:54:23,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:54:23,157 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-12-22 19:54:23,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 19:54:23,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-12-22 19:54:23,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:23,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2021-12-22 19:54:23,158 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-22 19:54:23,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-22 19:54:23,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-12-22 19:54:23,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:54:23,159 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-22 19:54:23,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-12-22 19:54:23,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-22 19:54:23,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 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) [2021-12-22 19:54:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-12-22 19:54:23,160 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-22 19:54:23,160 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-22 19:54:23,160 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-22 19:54:23,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-12-22 19:54:23,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:23,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:23,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:23,160 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:54:23,160 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-22 19:54:23,160 INFO L791 eck$LassoCheckResult]: Stem: 735#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 736#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 746#L569 goto; 740#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 741#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 738#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 734#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 748#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 747#L559 assume !(0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2));havoc f_#t~mem10#1; 745#L564 goto; 742#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 743#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 744#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 731#L569 goto; 732#L560 [2021-12-22 19:54:23,161 INFO L793 eck$LassoCheckResult]: Loop: 732#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 739#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 737#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 732#L560 [2021-12-22 19:54:23,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2021-12-22 19:54:23,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:23,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282473013] [2021-12-22 19:54:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:23,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,179 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:23,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:23,192 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2021-12-22 19:54:23,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:23,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796833514] [2021-12-22 19:54:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:23,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,196 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:23,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:23,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2021-12-22 19:54:23,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:23,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187501696] [2021-12-22 19:54:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:23,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,216 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:54:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:54:23,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:54:25,559 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:54:25,559 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:54:25,559 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:54:25,559 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:54:25,559 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:54:25,559 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:25,559 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:54:25,559 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:54:25,559 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2021-12-22 19:54:25,560 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:54:25,560 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:54:25,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:25,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:54:26,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:54:26,540 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:54:26,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,547 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) [2021-12-22 19:54:26,548 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 [2021-12-22 19:54:26,549 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 [2021-12-22 19:54:26,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:54:26,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:54:26,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:54:26,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-22 19:54:26,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,587 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) [2021-12-22 19:54:26,588 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 [2021-12-22 19:54:26,589 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 [2021-12-22 19:54:26,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,596 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,628 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 [2021-12-22 19:54:26,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,629 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) [2021-12-22 19:54:26,630 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 [2021-12-22 19:54:26,631 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 [2021-12-22 19:54:26,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,654 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-22 19:54:26,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,671 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) [2021-12-22 19:54:26,672 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 [2021-12-22 19:54:26,678 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 [2021-12-22 19:54:26,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,712 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 [2021-12-22 19:54:26,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,713 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) [2021-12-22 19:54:26,714 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 [2021-12-22 19:54:26,715 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 [2021-12-22 19:54:26,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,752 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 [2021-12-22 19:54:26,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,754 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) [2021-12-22 19:54:26,754 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 [2021-12-22 19:54:26,756 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 [2021-12-22 19:54:26,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-22 19:54:26,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,791 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) [2021-12-22 19:54:26,792 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 [2021-12-22 19:54:26,793 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 [2021-12-22 19:54:26,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,838 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 [2021-12-22 19:54:26,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,839 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) [2021-12-22 19:54:26,840 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 [2021-12-22 19:54:26,841 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 [2021-12-22 19:54:26,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:26,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,881 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) [2021-12-22 19:54:26,882 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 [2021-12-22 19:54:26,883 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 [2021-12-22 19:54:26,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,916 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 [2021-12-22 19:54:26,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,917 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) [2021-12-22 19:54:26,920 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 [2021-12-22 19:54:26,921 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 [2021-12-22 19:54:26,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:54:26,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:26,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:26,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:26,947 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) [2021-12-22 19:54:26,949 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 [2021-12-22 19:54:26,950 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 [2021-12-22 19:54:26,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:54:26,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:54:26,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:54:26,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:54:26,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:54:26,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:54:26,971 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:54:27,005 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-22 19:54:27,006 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-22 19:54:27,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:54:27,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:27,007 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:54:27,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-22 19:54:27,008 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:54:27,025 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 19:54:27,025 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:54:27,025 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0#1.base) ULTIMATE.start_f_~k_ref~0#1.offset)_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0#1.base) ULTIMATE.start_f_~i~0#1.offset)_3 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0#1.base) ULTIMATE.start_f_~k_ref~0#1.offset)_3 Supporting invariants [] [2021-12-22 19:54:27,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-22 19:54:27,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-22 19:54:27,142 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2021-12-22 19:54:27,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:27,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:54:27,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:27,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:54:27,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:27,247 INFO L353 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-12-22 19:54:27,247 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 37 [2021-12-22 19:54:27,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:27,265 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 [2021-12-22 19:54:27,265 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-12-22 19:54:27,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 30 states and 35 transitions. Complement of second has 7 states. [2021-12-22 19:54:27,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 19:54:27,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-12-22 19:54:27,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-12-22 19:54:27,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2021-12-22 19:54:27,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:27,277 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-22 19:54:27,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:27,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:54:27,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:27,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:54:27,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:27,375 INFO L353 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-12-22 19:54:27,375 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 37 [2021-12-22 19:54:27,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:54:27,392 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:54:27,392 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-12-22 19:54:27,414 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 51 states and 59 transitions. Complement of second has 9 states. [2021-12-22 19:54:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-22 19:54:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-12-22 19:54:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-12-22 19:54:27,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-12-22 19:54:27,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:27,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2021-12-22 19:54:27,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:27,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2021-12-22 19:54:27,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:54:27,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2021-12-22 19:54:27,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:27,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2021-12-22 19:54:27,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-22 19:54:27,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-22 19:54:27,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2021-12-22 19:54:27,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:54:27,417 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-12-22 19:54:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2021-12-22 19:54:27,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-12-22 19:54:27,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 34 states have internal predecessors, (41), 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) [2021-12-22 19:54:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-12-22 19:54:27,419 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-12-22 19:54:27,419 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-12-22 19:54:27,419 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-22 19:54:27,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2021-12-22 19:54:27,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 19:54:27,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:54:27,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:54:27,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:54:27,420 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-22 19:54:27,421 INFO L791 eck$LassoCheckResult]: Stem: 1118#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1;assume { :begin_inline_f } true;f_#in~k#1, f_#in~l#1 := main_#t~nondet17#1, main_#t~nondet18#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~malloc5#1.base, f_#t~malloc5#1.offset, f_#t~mem8#1, f_#t~post9#1, f_#t~mem10#1, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem12#1, f_#t~post13#1, f_#t~mem14#1, f_#t~mem11#1, f_#t~mem15#1, f_#t~mem16#1, f_~k#1, f_~l#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, f_~i~0#1.base, f_~i~0#1.offset, f_~j~0#1.base, f_~j~0#1.offset;f_~k#1 := f_#in~k#1;f_~l#1 := f_#in~l#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~k_ref~0#1.base, f_~k_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~l_ref~0#1.base, f_~l_ref~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~i~0#1.base, f_~i~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call f_#t~malloc5#1.base, f_#t~malloc5#1.offset := #Ultimate.allocOnStack(4);f_~j~0#1.base, f_~j~0#1.offset := f_#t~malloc5#1.base, f_#t~malloc5#1.offset;call write~int(f_~k#1, f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4);call write~int(f_~l#1, f_~l_ref~0#1.base, f_~l_ref~0#1.offset, 4);call write~int(0, f_~i~0#1.base, f_~i~0#1.offset, 4);call write~int(0, f_~j~0#1.base, f_~j~0#1.offset, 4); 1114#L569 goto; 1115#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 1125#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1122#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 1123#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 1147#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1145#L559 assume !(0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2));havoc f_#t~mem10#1; 1143#L564 goto; 1141#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 1126#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1127#L566 assume 0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2);havoc f_#t~mem14#1; 1135#L567 call f_#t~mem11#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4); 1137#L564-1 assume !!(f_#t~mem11#1 < 1);havoc f_#t~mem11#1;call f_#t~mem12#1 := read~int(f_~j~0#1.base, f_~j~0#1.offset, 4);f_#t~post13#1 := f_#t~mem12#1;call write~int(1 + f_#t~post13#1, f_~j~0#1.base, f_~j~0#1.offset, 4);havoc f_#t~mem12#1;havoc f_#t~post13#1;call f_#t~mem14#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1134#L566 assume !(0 != (if f_#t~mem14#1 < 0 && 0 != f_#t~mem14#1 % 2 then f_#t~mem14#1 % 2 - 2 else f_#t~mem14#1 % 2));havoc f_#t~mem14#1; 1133#L569 goto; 1121#L560 [2021-12-22 19:54:27,421 INFO L793 eck$LassoCheckResult]: Loop: 1121#L560 call f_#t~mem6#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);call f_#t~mem7#1 := read~int(f_~k_ref~0#1.base, f_~k_ref~0#1.offset, 4); 1124#L557-1 assume !!(f_#t~mem6#1 < f_#t~mem7#1);havoc f_#t~mem6#1;havoc f_#t~mem7#1;call f_#t~mem8#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4);f_#t~post9#1 := f_#t~mem8#1;call write~int(1 + f_#t~post9#1, f_~i~0#1.base, f_~i~0#1.offset, 4);havoc f_#t~mem8#1;havoc f_#t~post9#1;call f_#t~mem10#1 := read~int(f_~i~0#1.base, f_~i~0#1.offset, 4); 1120#L559 assume 0 != (if f_#t~mem10#1 < 0 && 0 != f_#t~mem10#1 % 2 then f_#t~mem10#1 % 2 - 2 else f_#t~mem10#1 % 2);havoc f_#t~mem10#1; 1121#L560 [2021-12-22 19:54:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:54:27,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2021-12-22 19:54:27,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:54:27,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530836872] [2021-12-22 19:54:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:27,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:54:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 19:54:27,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:54:27,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530836872] [2021-12-22 19:54:27,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530836872] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:54:27,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449595367] [2021-12-22 19:54:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:54:27,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:54:27,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:54:27,473 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 19:54:27,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-12-22 19:54:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:54:27,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-22 19:54:27,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:54:27,731 INFO L353 Elim1Store]: treesize reduction 324, result has 30.9 percent of original size [2021-12-22 19:54:27,731 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 442 treesize of output 375 [2021-12-22 19:54:27,758 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-22 19:54:27,782 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-12-22 19:54:27,802 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-12-22 19:54:27,833 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-12-22 19:54:28,617 INFO L353 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-12-22 19:54:28,618 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 47 [2021-12-22 19:54:28,628 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:28,641 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:28,704 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-22 19:54:28,704 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 20 [2021-12-22 19:54:28,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:28,897 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-12-22 19:54:28,898 INFO L387 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 64 treesize of output 74 [2021-12-22 19:54:28,943 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:29,429 INFO L353 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-12-22 19:54:29,430 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 81 treesize of output 97 [2021-12-22 19:54:29,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:29,746 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:30,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:54:30,212 INFO L353 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-12-22 19:54:30,212 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 40 [2021-12-22 19:54:30,236 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:30,485 INFO L353 Elim1Store]: treesize reduction 8, result has 89.0 percent of original size [2021-12-22 19:54:30,486 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 129 treesize of output 177 [2021-12-22 19:54:30,508 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:31,087 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:31,097 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:35,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:54:48,513 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:55:16,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-22 19:55:16,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 19:55:16,335 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-22 19:55:16,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7