./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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/java_Sequence-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 d628f3524885345eb9e2318f2d0dbb026e233c3bcc51319b2ad8fc1a71d35580 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:06:35,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:06:35,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:06:35,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:06:35,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:06:35,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:06:35,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:06:35,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:06:35,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:06:35,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:06:35,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:06:35,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:06:35,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:06:35,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:06:35,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:06:35,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:06:35,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:06:35,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:06:35,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:06:35,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:06:35,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:06:35,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:06:35,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:06:35,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:06:35,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:06:35,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:06:35,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:06:35,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:06:35,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:06:35,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:06:35,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:06:35,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:06:35,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:06:35,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:06:35,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:06:35,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:06:35,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:06:35,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:06:35,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:06:35,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:06:35,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:06:35,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-14 23:06:35,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:06:35,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:06:35,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:06:35,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:06:35,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:06:35,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:06:35,734 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:06:35,734 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:06:35,734 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:06:35,734 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:06:35,735 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:06:35,735 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:06:35,736 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:06:35,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:06:35,736 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:06:35,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:06:35,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:06:35,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:06:35,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:06:35,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:06:35,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:06:35,737 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:06:35,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:06:35,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:06:35,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:06:35,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:06:35,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:06:35,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:06:35,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:06:35,739 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:06:35,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d628f3524885345eb9e2318f2d0dbb026e233c3bcc51319b2ad8fc1a71d35580 [2021-12-14 23:06:35,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:06:35,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:06:35,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:06:35,984 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:06:35,985 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:06:35,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i [2021-12-14 23:06:36,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8d40e19c/74446749947c4dedbe014daa6d676b72/FLAG300c5859f [2021-12-14 23:06:36,414 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:06:36,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i [2021-12-14 23:06:36,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8d40e19c/74446749947c4dedbe014daa6d676b72/FLAG300c5859f [2021-12-14 23:06:36,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8d40e19c/74446749947c4dedbe014daa6d676b72 [2021-12-14 23:06:36,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:06:36,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:06:36,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:06:36,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:06:36,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:06:36,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380f1193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36, skipping insertion in model container [2021-12-14 23:06:36,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:06:36,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:06:36,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:06:36,764 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:06:36,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:06:36,828 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:06:36,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36 WrapperNode [2021-12-14 23:06:36,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:06:36,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:06:36,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:06:36,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:06:36,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,876 INFO L137 Inliner]: procedures = 109, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2021-12-14 23:06:36,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:06:36,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:06:36,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:06:36,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:06:36,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:06:36,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:06:36,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:06:36,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:06:36,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (1/1) ... [2021-12-14 23:06:36,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:36,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:36,940 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) [2021-12-14 23:06:36,942 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 [2021-12-14 23:06:36,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 23:06:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 23:06:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 23:06:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 23:06:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:06:36,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:06:37,041 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:06:37,043 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:06:37,146 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:06:37,150 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:06:37,151 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:06:37,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:06:37 BoogieIcfgContainer [2021-12-14 23:06:37,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:06:37,153 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:06:37,153 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:06:37,156 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:06:37,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:06:37,157 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:06:36" (1/3) ... [2021-12-14 23:06:37,158 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14932b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:06:37, skipping insertion in model container [2021-12-14 23:06:37,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:06:37,158 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:06:36" (2/3) ... [2021-12-14 23:06:37,159 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14932b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:06:37, skipping insertion in model container [2021-12-14 23:06:37,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:06:37,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:06:37" (3/3) ... [2021-12-14 23:06:37,160 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_Sequence-alloca.i [2021-12-14 23:06:37,197 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:06:37,197 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:06:37,198 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:06:37,198 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:06:37,198 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:06:37,198 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:06:37,198 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:06:37,198 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:06:37,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:06:37,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-14 23:06:37,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:06:37,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:06:37,225 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:06:37,225 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:06:37,226 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:06:37,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:06:37,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-14 23:06:37,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:06:37,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:06:37,228 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:06:37,228 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:06:37,233 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 6#L552-4true [2021-12-14 23:06:37,233 INFO L793 eck$LassoCheckResult]: Loop: 6#L552-4true call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 11#L552-1true assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 5#L552-3true call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 6#L552-4true [2021-12-14 23:06:37,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:37,237 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-14 23:06:37,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:37,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914585605] [2021-12-14 23:06:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:37,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:37,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:06:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:37,465 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:06:37,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:37,467 INFO L85 PathProgramCache]: Analyzing trace with hash 35911, now seen corresponding path program 1 times [2021-12-14 23:06:37,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:37,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321923887] [2021-12-14 23:06:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:37,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:37,481 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:06:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:37,491 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:06:37,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:37,493 INFO L85 PathProgramCache]: Analyzing trace with hash 28694853, now seen corresponding path program 1 times [2021-12-14 23:06:37,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:37,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768894511] [2021-12-14 23:06:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:37,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:37,539 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:06:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:37,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:06:38,050 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:06:38,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:06:38,051 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:06:38,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:06:38,051 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:06:38,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:06:38,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:06:38,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence-alloca.i_Iteration1_Lasso [2021-12-14 23:06:38,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:06:38,053 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:06:38,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:06:38,693 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:06:38,696 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:06:38,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:38,699 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) [2021-12-14 23:06:38,704 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 [2021-12-14 23:06:38,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:38,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:38,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:38,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:38,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:38,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:38,723 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 [2021-12-14 23:06:38,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:38,742 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 [2021-12-14 23:06:38,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:38,744 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) [2021-12-14 23:06:38,745 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 [2021-12-14 23:06:38,747 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 [2021-12-14 23:06:38,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:38,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:38,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:38,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:38,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:38,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:38,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:38,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-14 23:06:38,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:38,791 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) [2021-12-14 23:06:38,792 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 [2021-12-14 23:06:38,794 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 [2021-12-14 23:06:38,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:38,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:38,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:38,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:38,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:38,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:38,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:38,839 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 [2021-12-14 23:06:38,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:38,841 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) [2021-12-14 23:06:38,843 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 [2021-12-14 23:06:38,844 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 [2021-12-14 23:06:38,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:38,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:06:38,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:38,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:38,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:38,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:06:38,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:06:38,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:38,889 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 [2021-12-14 23:06:38,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:38,890 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) [2021-12-14 23:06:38,898 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 [2021-12-14 23:06:38,906 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 [2021-12-14 23:06:38,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:38,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:38,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:38,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:38,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:38,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:38,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:38,930 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 [2021-12-14 23:06:38,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:38,931 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) [2021-12-14 23:06:38,939 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 [2021-12-14 23:06:38,943 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 [2021-12-14 23:06:38,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:38,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:06:38,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:38,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:38,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:38,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:06:38,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:06:38,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:38,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-14 23:06:38,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:38,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:38,982 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) [2021-12-14 23:06:38,984 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 [2021-12-14 23:06:38,985 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 [2021-12-14 23:06:38,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:38,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:38,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:38,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:38,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:38,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,029 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 [2021-12-14 23:06:39,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,030 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) [2021-12-14 23:06:39,035 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 [2021-12-14 23:06:39,036 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 [2021-12-14 23:06:39,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:06:39,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:06:39,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:06:39,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,067 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 [2021-12-14 23:06:39,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,068 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) [2021-12-14 23:06:39,069 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 [2021-12-14 23:06:39,117 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 [2021-12-14 23:06:39,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:06:39,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:06:39,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:06:39,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,146 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 [2021-12-14 23:06:39,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,147 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) [2021-12-14 23:06:39,148 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 [2021-12-14 23:06:39,149 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 [2021-12-14 23:06:39,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:06:39,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:06:39,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:06:39,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,178 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 [2021-12-14 23:06:39,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,180 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) [2021-12-14 23:06:39,180 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 [2021-12-14 23:06:39,182 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 [2021-12-14 23:06:39,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:06:39,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:06:39,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:06:39,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-14 23:06:39,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,233 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) [2021-12-14 23:06:39,236 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 [2021-12-14 23:06:39,237 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 [2021-12-14 23:06:39,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,273 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 [2021-12-14 23:06:39,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,274 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) [2021-12-14 23:06:39,275 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 [2021-12-14 23:06:39,277 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 [2021-12-14 23:06:39,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,342 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 [2021-12-14 23:06:39,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,343 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) [2021-12-14 23:06:39,344 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 [2021-12-14 23:06:39,345 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 [2021-12-14 23:06:39,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,384 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 [2021-12-14 23:06:39,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,385 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) [2021-12-14 23:06:39,385 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 [2021-12-14 23:06:39,387 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 [2021-12-14 23:06:39,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,426 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 [2021-12-14 23:06:39,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,428 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) [2021-12-14 23:06:39,429 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 [2021-12-14 23:06:39,429 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 [2021-12-14 23:06:39,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,479 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 [2021-12-14 23:06:39,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,480 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) [2021-12-14 23:06:39,481 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 [2021-12-14 23:06:39,482 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 [2021-12-14 23:06:39,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,514 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 [2021-12-14 23:06:39,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,515 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) [2021-12-14 23:06:39,516 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 [2021-12-14 23:06:39,517 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 [2021-12-14 23:06:39,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,527 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,527 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,545 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 [2021-12-14 23:06:39,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,546 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) [2021-12-14 23:06:39,549 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 [2021-12-14 23:06:39,549 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 [2021-12-14 23:06:39,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:06:39,608 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 [2021-12-14 23:06:39,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,609 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) [2021-12-14 23:06:39,612 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 [2021-12-14 23:06:39,612 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 [2021-12-14 23:06:39,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:06:39,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:06:39,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:06:39,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:06:39,621 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-14 23:06:39,621 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-14 23:06:39,639 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:06:39,663 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-14 23:06:39,663 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-14 23:06:39,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:06:39,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:39,676 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) [2021-12-14 23:06:39,704 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:06:39,712 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 [2021-12-14 23:06:39,720 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-14 23:06:39,720 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:06:39,721 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1 + 199 Supporting invariants [] [2021-12-14 23:06:39,745 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 [2021-12-14 23:06:39,800 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2021-12-14 23:06:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:06:39,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 23:06:39,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:06:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:06:39,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 23:06:39,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:06:39,974 INFO L354 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-14 23:06:39,974 INFO L388 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 39 treesize of output 50 [2021-12-14 23:06:40,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:40,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-14 23:06:40,159 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 [2021-12-14 23:06:40,160 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-12-14 23:06:40,208 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) Result 25 states and 31 transitions. Complement of second has 10 states. [2021-12-14 23:06:40,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-14 23:06:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-12-14 23:06:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2021-12-14 23:06:40,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 2 letters. Loop has 3 letters. [2021-12-14 23:06:40,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:06:40,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-14 23:06:40,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:06:40,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-14 23:06:40,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:06:40,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2021-12-14 23:06:40,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:40,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 13 transitions. [2021-12-14 23:06:40,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-14 23:06:40,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-14 23:06:40,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-12-14 23:06:40,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:06:40,224 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-14 23:06:40,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-12-14 23:06:40,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-14 23:06:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 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) [2021-12-14 23:06:40,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-12-14 23:06:40,244 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-14 23:06:40,244 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-14 23:06:40,244 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:06:40,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2021-12-14 23:06:40,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:40,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:06:40,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:06:40,246 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-14 23:06:40,246 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:06:40,246 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 153#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 155#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 156#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 157#L553-4 [2021-12-14 23:06:40,247 INFO L793 eck$LassoCheckResult]: Loop: 157#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 159#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 158#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 157#L553-4 [2021-12-14 23:06:40,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:40,250 INFO L85 PathProgramCache]: Analyzing trace with hash 28694795, now seen corresponding path program 1 times [2021-12-14 23:06:40,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:40,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109742872] [2021-12-14 23:06:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:40,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:06:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:40,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:06:40,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109742872] [2021-12-14 23:06:40,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109742872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:06:40,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:06:40,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:06:40,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340697325] [2021-12-14 23:06:40,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:06:40,347 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:06:40,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:40,347 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2021-12-14 23:06:40,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:40,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536254354] [2021-12-14 23:06:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:40,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:40,354 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:06:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:40,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:06:40,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:06:40,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 23:06:40,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 23:06:40,429 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-12-14 23:06:40,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:06:40,453 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-12-14 23:06:40,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 23:06:40,454 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2021-12-14 23:06:40,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:40,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2021-12-14 23:06:40,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-14 23:06:40,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-14 23:06:40,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-12-14 23:06:40,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:06:40,456 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-14 23:06:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-12-14 23:06:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-12-14 23:06:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:06:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-12-14 23:06:40,458 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-14 23:06:40,458 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-14 23:06:40,458 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:06:40,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-12-14 23:06:40,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:40,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:06:40,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:06:40,460 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-14 23:06:40,460 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:06:40,461 INFO L791 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 183#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 186#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 187#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 184#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 185#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 188#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 189#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 190#L553-4 [2021-12-14 23:06:40,461 INFO L793 eck$LassoCheckResult]: Loop: 190#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 192#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 191#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 190#L553-4 [2021-12-14 23:06:40,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:40,461 INFO L85 PathProgramCache]: Analyzing trace with hash 149879881, now seen corresponding path program 1 times [2021-12-14 23:06:40,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:40,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421618003] [2021-12-14 23:06:40,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:40,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:06:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:40,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:06:40,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421618003] [2021-12-14 23:06:40,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421618003] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:06:40,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068337566] [2021-12-14 23:06:40,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:40,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:06:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:40,570 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:06:40,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-14 23:06:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:06:40,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-14 23:06:40,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:06:40,667 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-12-14 23:06:40,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2021-12-14 23:06:40,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-14 23:06:40,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-12-14 23:06:40,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-14 23:06:40,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2021-12-14 23:06:40,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-14 23:06:40,816 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:40,817 INFO L388 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 28 treesize of output 35 [2021-12-14 23:06:40,950 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 23:06:40,951 INFO L388 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 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-14 23:06:40,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-14 23:06:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:40,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 23:06:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:41,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068337566] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 23:06:41,055 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 23:06:41,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-12-14 23:06:41,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104267833] [2021-12-14 23:06:41,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 23:06:41,056 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:06:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 2 times [2021-12-14 23:06:41,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:41,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317031683] [2021-12-14 23:06:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:41,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:41,075 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:06:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:41,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:06:41,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:06:41,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 23:06:41,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-12-14 23:06:41,158 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 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) [2021-12-14 23:06:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:06:41,229 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-12-14 23:06:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-14 23:06:41,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 21 transitions. [2021-12-14 23:06:41,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:41,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 19 transitions. [2021-12-14 23:06:41,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-14 23:06:41,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-14 23:06:41,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 19 transitions. [2021-12-14 23:06:41,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:06:41,232 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-12-14 23:06:41,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 19 transitions. [2021-12-14 23:06:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-12-14 23:06:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 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) [2021-12-14 23:06:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-12-14 23:06:41,234 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-12-14 23:06:41,234 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-12-14 23:06:41,234 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:06:41,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-12-14 23:06:41,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:41,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:06:41,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:06:41,235 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 1, 1, 1, 1] [2021-12-14 23:06:41,236 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:06:41,236 INFO L791 eck$LassoCheckResult]: Stem: 281#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 282#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 283#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 284#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 279#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 280#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 285#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 295#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 294#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 292#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 293#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 291#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 290#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 286#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 287#L553-4 [2021-12-14 23:06:41,236 INFO L793 eck$LassoCheckResult]: Loop: 287#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 289#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 288#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 287#L553-4 [2021-12-14 23:06:41,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash -579836663, now seen corresponding path program 2 times [2021-12-14 23:06:41,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:41,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980636840] [2021-12-14 23:06:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:41,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:06:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:41,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:06:41,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980636840] [2021-12-14 23:06:41,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980636840] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:06:41,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472346470] [2021-12-14 23:06:41,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 23:06:41,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:06:41,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:41,467 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:06:41,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-14 23:06:41,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 23:06:41,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 23:06:41,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-14 23:06:41,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:06:41,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-12-14 23:06:41,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 23:06:41,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2021-12-14 23:06:41,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-14 23:06:41,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-14 23:06:41,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-14 23:06:41,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-14 23:06:41,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-12-14 23:06:41,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-14 23:06:41,675 INFO L388 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 28 treesize of output 16 [2021-12-14 23:06:41,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-14 23:06:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:41,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 23:06:41,750 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99)) is different from false [2021-12-14 23:06:41,765 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int)) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206)))) is different from false [2021-12-14 23:06:41,779 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_205 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int)) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_205))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206) (< (select (select (store (store .cse1 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99))))) is different from false [2021-12-14 23:06:41,816 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_205 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int) (v_ArrVal_204 Int)) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base|))) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_204)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_205))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206) (< (select (select (store (store .cse1 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse2 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_204)))))) is different from false [2021-12-14 23:06:41,847 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_205 (Array Int Int)) (v_ArrVal_208 (Array Int Int)) (v_ArrVal_206 Int) (v_ArrVal_202 (Array Int Int)) (v_ArrVal_204 Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_202))) (let ((.cse2 (select .cse3 |c_ULTIMATE.start_main_~i~0#1.base|))) (let ((.cse0 (store (store .cse3 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_204)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_205))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (select (select (store (store .cse0 |c_ULTIMATE.start_main_~i~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_206)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse2 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_204) (< (+ (select .cse1 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_206))))))) is different from false [2021-12-14 23:06:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2021-12-14 23:06:41,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472346470] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 23:06:41,896 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 23:06:41,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 10] total 24 [2021-12-14 23:06:41,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099536742] [2021-12-14 23:06:41,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 23:06:41,897 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-14 23:06:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 3 times [2021-12-14 23:06:41,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:41,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705842862] [2021-12-14 23:06:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:41,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:41,902 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:06:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:06:41,909 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:06:41,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:06:41,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-14 23:06:41,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=229, Unknown=5, NotChecked=190, Total=552 [2021-12-14 23:06:41,972 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. cyclomatic complexity: 3 Second operand has 24 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 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) [2021-12-14 23:06:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:06:42,164 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2021-12-14 23:06:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-14 23:06:42,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 31 transitions. [2021-12-14 23:06:42,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:42,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 28 transitions. [2021-12-14 23:06:42,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-14 23:06:42,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-14 23:06:42,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2021-12-14 23:06:42,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-14 23:06:42,167 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-14 23:06:42,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2021-12-14 23:06:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-12-14 23:06:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 states have internal predecessors, (27), 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) [2021-12-14 23:06:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-12-14 23:06:42,169 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-12-14 23:06:42,169 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-12-14 23:06:42,169 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-14 23:06:42,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 27 transitions. [2021-12-14 23:06:42,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:06:42,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:06:42,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:06:42,170 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 6, 6, 1, 1, 1, 1] [2021-12-14 23:06:42,170 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:06:42,170 INFO L791 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 450#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 453#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 454#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 474#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 455#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 456#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 451#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 452#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 473#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 472#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 471#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 470#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 469#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 468#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 467#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 466#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 465#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 463#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 464#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 462#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 461#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 459#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 458#L553-4 [2021-12-14 23:06:42,170 INFO L793 eck$LassoCheckResult]: Loop: 458#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 460#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 457#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 458#L553-4 [2021-12-14 23:06:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:06:42,170 INFO L85 PathProgramCache]: Analyzing trace with hash -733972789, now seen corresponding path program 3 times [2021-12-14 23:06:42,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:06:42,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505600944] [2021-12-14 23:06:42,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:06:42,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:06:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:06:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:42,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:06:42,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505600944] [2021-12-14 23:06:42,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505600944] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 23:06:42,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939467030] [2021-12-14 23:06:42,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 23:06:42,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 23:06:42,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:06:42,624 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 23:06:42,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-12-14 23:06:42,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-14 23:06:42,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 23:06:42,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 49 conjunts are in the unsatisfiable core [2021-12-14 23:06:42,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:06:42,792 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-12-14 23:06:42,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2021-12-14 23:06:42,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-12-14 23:06:42,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-12-14 23:06:42,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-12-14 23:06:42,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-14 23:06:42,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-12-14 23:06:42,894 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:42,894 INFO L388 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 28 treesize of output 35 [2021-12-14 23:06:42,976 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:42,976 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,060 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,060 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,147 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,147 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,231 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,232 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,306 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,307 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,394 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,394 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,489 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,489 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,610 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,610 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,718 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,719 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,821 INFO L354 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2021-12-14 23:06:43,821 INFO L388 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 40 treesize of output 43 [2021-12-14 23:06:43,886 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 23:06:43,886 INFO L388 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 1 case distinctions, treesize of input 28 treesize of output 26 [2021-12-14 23:06:43,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-14 23:06:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:06:43,916 INFO L328 TraceCheckSpWp]: Computing backward predicates...