./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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/b.18-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 64e9a02fe4d55a12958b5de8c28c6c0ab007c7a3dc976261fd9d4ec11bf5feff --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:02:30,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:02:30,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:02:30,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:02:30,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:02:30,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:02:30,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:02:30,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:02:30,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:02:30,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:02:30,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:02:30,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:02:30,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:02:30,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:02:30,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:02:30,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:02:30,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:02:30,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:02:30,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:02:30,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:02:30,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:02:30,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:02:30,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:02:30,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:02:30,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:02:30,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:02:30,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:02:30,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:02:30,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:02:30,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:02:30,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:02:30,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:02:30,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:02:30,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:02:30,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:02:30,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:02:30,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:02:30,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:02:30,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:02:30,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:02:30,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:02:30,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-15 17:02:30,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:02:30,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:02:30,974 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:02:30,974 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:02:30,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:02:30,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:02:30,976 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:02:30,976 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:02:30,976 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:02:30,977 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:02:30,977 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:02:30,978 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:02:30,978 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:02:30,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:02:30,978 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:02:30,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:02:30,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:02:30,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:02:30,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:02:30,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:02:30,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:02:30,983 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:02:30,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:02:30,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:02:30,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:02:30,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:02:30,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:02:30,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:02:30,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:02:30,988 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:02:30,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64e9a02fe4d55a12958b5de8c28c6c0ab007c7a3dc976261fd9d4ec11bf5feff [2021-12-15 17:02:31,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:02:31,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:02:31,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:02:31,237 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:02:31,238 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:02:31,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2021-12-15 17:02:31,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb2457d/7138ac9ae65e4cdb9e7e631012b8df27/FLAG4949299d7 [2021-12-15 17:02:31,741 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:02:31,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2021-12-15 17:02:31,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb2457d/7138ac9ae65e4cdb9e7e631012b8df27/FLAG4949299d7 [2021-12-15 17:02:32,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb2457d/7138ac9ae65e4cdb9e7e631012b8df27 [2021-12-15 17:02:32,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:02:32,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:02:32,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:02:32,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:02:32,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:02:32,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460052d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32, skipping insertion in model container [2021-12-15 17:02:32,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:02:32,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:02:32,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:02:32,585 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:02:32,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:02:32,663 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:02:32,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32 WrapperNode [2021-12-15 17:02:32,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:02:32,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:02:32,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:02:32,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:02:32,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,722 INFO L137 Inliner]: procedures = 111, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2021-12-15 17:02:32,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:02:32,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:02:32,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:02:32,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:02:32,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:02:32,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:02:32,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:02:32,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:02:32,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (1/1) ... [2021-12-15 17:02:32,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:32,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:32,797 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) [2021-12-15 17:02:32,798 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 [2021-12-15 17:02:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 17:02:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 17:02:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 17:02:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 17:02:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:02:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:02:32,898 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:02:32,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:02:33,013 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:02:33,019 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:02:33,019 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 17:02:33,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:02:33 BoogieIcfgContainer [2021-12-15 17:02:33,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:02:33,022 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:02:33,022 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:02:33,030 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:02:33,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:02:33,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:02:32" (1/3) ... [2021-12-15 17:02:33,032 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@448c43f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:02:33, skipping insertion in model container [2021-12-15 17:02:33,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:02:33,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:02:32" (2/3) ... [2021-12-15 17:02:33,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@448c43f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:02:33, skipping insertion in model container [2021-12-15 17:02:33,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:02:33,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:02:33" (3/3) ... [2021-12-15 17:02:33,040 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.18-alloca.i [2021-12-15 17:02:33,100 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:02:33,103 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:02:33,103 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:02:33,103 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:02:33,103 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:02:33,103 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:02:33,103 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:02:33,104 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:02:33,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:33,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:02:33,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:33,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:33,162 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:02:33,162 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-15 17:02:33,162 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:02:33,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:33,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:02:33,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:33,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:33,167 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:02:33,167 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-15 17:02:33,173 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 13#L559-4true [2021-12-15 17:02:33,174 INFO L793 eck$LassoCheckResult]: Loop: 13#L559-4true call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 12#L553-1true assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 7#L553-3true assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 18#L554true assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 8#L559-3true assume !true; 13#L559-4true [2021-12-15 17:02:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:02:33,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023545336] [2021-12-15 17:02:33,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,332 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,384 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:33,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,386 INFO L85 PathProgramCache]: Analyzing trace with hash 35410170, now seen corresponding path program 1 times [2021-12-15 17:02:33,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150073544] [2021-12-15 17:02:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:33,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:02:33,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150073544] [2021-12-15 17:02:33,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150073544] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:02:33,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:02:33,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-12-15 17:02:33,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219142115] [2021-12-15 17:02:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:02:33,468 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:02:33,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:02:33,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 17:02:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 17:02:33,503 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 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) [2021-12-15 17:02:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:02:33,510 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2021-12-15 17:02:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 17:02:33,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2021-12-15 17:02:33,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:02:33,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 10 states and 14 transitions. [2021-12-15 17:02:33,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-15 17:02:33,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-15 17:02:33,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2021-12-15 17:02:33,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:02:33,525 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-12-15 17:02:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2021-12-15 17:02:33,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-15 17:02:33,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-12-15 17:02:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2021-12-15 17:02:33,547 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-12-15 17:02:33,547 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-12-15 17:02:33,547 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:02:33,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2021-12-15 17:02:33,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 17:02:33,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:33,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:33,550 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:02:33,550 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-15 17:02:33,550 INFO L791 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 43#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 50#L559-4 [2021-12-15 17:02:33,550 INFO L793 eck$LassoCheckResult]: Loop: 50#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 51#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 46#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 47#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 48#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 49#L559-1 assume !(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1; 50#L559-4 [2021-12-15 17:02:33,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-15 17:02:33,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572630291] [2021-12-15 17:02:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,571 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1097715097, now seen corresponding path program 1 times [2021-12-15 17:02:33,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691213313] [2021-12-15 17:02:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:33,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:02:33,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691213313] [2021-12-15 17:02:33,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691213313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:02:33,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:02:33,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 17:02:33,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470642738] [2021-12-15 17:02:33,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:02:33,667 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:02:33,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:02:33,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:02:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:02:33,668 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:02:33,716 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2021-12-15 17:02:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:02:33,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2021-12-15 17:02:33,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-12-15 17:02:33,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 23 transitions. [2021-12-15 17:02:33,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-15 17:02:33,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-15 17:02:33,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2021-12-15 17:02:33,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:02:33,721 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-12-15 17:02:33,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2021-12-15 17:02:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2021-12-15 17:02:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-12-15 17:02:33,725 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-15 17:02:33,725 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-15 17:02:33,725 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:02:33,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-12-15 17:02:33,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-12-15 17:02:33,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:33,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:33,728 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:02:33,728 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-15 17:02:33,728 INFO L791 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 80#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 89#L559-4 [2021-12-15 17:02:33,729 INFO L793 eck$LassoCheckResult]: Loop: 89#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 88#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 83#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 84#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 81#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 82#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 89#L559-4 [2021-12-15 17:02:33,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,730 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-12-15 17:02:33,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440834641] [2021-12-15 17:02:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,761 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1097700202, now seen corresponding path program 1 times [2021-12-15 17:02:33,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184314554] [2021-12-15 17:02:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:33,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:02:33,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184314554] [2021-12-15 17:02:33,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184314554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:02:33,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:02:33,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:02:33,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22064961] [2021-12-15 17:02:33,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:02:33,818 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:02:33,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:02:33,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:02:33,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:02:33,820 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:02:33,875 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-12-15 17:02:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:02:33,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-12-15 17:02:33,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-15 17:02:33,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2021-12-15 17:02:33,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-15 17:02:33,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-15 17:02:33,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-12-15 17:02:33,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:02:33,880 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-12-15 17:02:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-12-15 17:02:33,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-12-15 17:02:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 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) [2021-12-15 17:02:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-12-15 17:02:33,883 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-12-15 17:02:33,883 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-12-15 17:02:33,883 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-15 17:02:33,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2021-12-15 17:02:33,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-12-15 17:02:33,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:33,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:33,885 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:02:33,886 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-15 17:02:33,886 INFO L791 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 125#L559-4 [2021-12-15 17:02:33,886 INFO L793 eck$LassoCheckResult]: Loop: 125#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 126#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 120#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 121#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 118#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 119#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 127#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 129#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 125#L559-4 [2021-12-15 17:02:33,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2021-12-15 17:02:33,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103948336] [2021-12-15 17:02:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:33,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:33,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1672057937, now seen corresponding path program 1 times [2021-12-15 17:02:33,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:33,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337834455] [2021-12-15 17:02:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:33,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:02:33,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337834455] [2021-12-15 17:02:33,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337834455] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:02:33,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700983115] [2021-12-15 17:02:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:33,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:02:33,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:33,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:02:33,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 17:02:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:34,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-15 17:02:34,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:34,314 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-12-15 17:02:34,315 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 35 [2021-12-15 17:02:34,429 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-12-15 17:02:34,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2021-12-15 17:02:34,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:34,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 17:02:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:34,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700983115] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 17:02:34,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 17:02:34,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-15 17:02:34,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456697253] [2021-12-15 17:02:34,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 17:02:34,567 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:02:34,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:02:34,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 17:02:34,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-12-15 17:02:34,569 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand has 12 states, 11 states have (on average 1.4545454545454546) 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) [2021-12-15 17:02:34,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:02:34,611 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2021-12-15 17:02:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 17:02:34,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 25 transitions. [2021-12-15 17:02:34,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2021-12-15 17:02:34,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 25 transitions. [2021-12-15 17:02:34,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-12-15 17:02:34,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-15 17:02:34,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2021-12-15 17:02:34,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:02:34,620 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-15 17:02:34,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2021-12-15 17:02:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-12-15 17:02:34,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-12-15 17:02:34,625 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-15 17:02:34,625 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-15 17:02:34,625 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-15 17:02:34,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-12-15 17:02:34,628 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2021-12-15 17:02:34,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:34,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:34,630 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:02:34,630 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-15 17:02:34,630 INFO L791 eck$LassoCheckResult]: Stem: 209#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 218#L559-4 [2021-12-15 17:02:34,630 INFO L793 eck$LassoCheckResult]: Loop: 218#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 219#L553-1 assume !test_fun_#t~short6#1; 213#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 214#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 211#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 212#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 224#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 223#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 218#L559-4 [2021-12-15 17:02:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2021-12-15 17:02:34,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:34,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769728812] [2021-12-15 17:02:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:34,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,652 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash 102949425, now seen corresponding path program 1 times [2021-12-15 17:02:34,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:34,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875303556] [2021-12-15 17:02:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:34,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-15 17:02:34,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:02:34,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875303556] [2021-12-15 17:02:34,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875303556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:02:34,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:02:34,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:02:34,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025397997] [2021-12-15 17:02:34,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:02:34,675 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:02:34,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:02:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:02:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:02:34,676 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-12-15 17:02:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:02:34,682 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-12-15 17:02:34,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:02:34,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2021-12-15 17:02:34,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-12-15 17:02:34,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 16 states and 19 transitions. [2021-12-15 17:02:34,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-15 17:02:34,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-15 17:02:34,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2021-12-15 17:02:34,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:02:34,685 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-15 17:02:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2021-12-15 17:02:34,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-15 17:02:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 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) [2021-12-15 17:02:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-12-15 17:02:34,687 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-15 17:02:34,687 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-15 17:02:34,687 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-15 17:02:34,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-12-15 17:02:34,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-12-15 17:02:34,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:34,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:34,688 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:02:34,688 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-15 17:02:34,689 INFO L791 eck$LassoCheckResult]: Stem: 250#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 251#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 259#L559-4 [2021-12-15 17:02:34,689 INFO L793 eck$LassoCheckResult]: Loop: 259#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 260#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 254#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 255#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 256#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 257#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 258#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 262#L559-1 assume !(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1; 259#L559-4 [2021-12-15 17:02:34,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:34,689 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2021-12-15 17:02:34,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:34,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271689147] [2021-12-15 17:02:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:34,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,697 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:34,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:34,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1657743362, now seen corresponding path program 1 times [2021-12-15 17:02:34,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:34,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191820522] [2021-12-15 17:02:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:34,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,739 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:34,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash -967181888, now seen corresponding path program 1 times [2021-12-15 17:02:34,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:34,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393817234] [2021-12-15 17:02:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:34,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,771 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:34,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:35,291 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:02:35,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:02:35,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:02:35,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:02:35,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:02:35,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:35,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:02:35,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:02:35,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration6_Lasso [2021-12-15 17:02:35,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:02:35,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:02:35,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:35,889 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:02:35,893 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:02:35,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:35,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:35,896 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) [2021-12-15 17:02:35,897 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 [2021-12-15 17:02:35,898 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 [2021-12-15 17:02:35,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:35,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:35,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:35,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:35,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:35,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:35,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:35,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:35,924 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 [2021-12-15 17:02:35,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:35,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:35,925 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) [2021-12-15 17:02:35,926 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 [2021-12-15 17:02:35,927 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 [2021-12-15 17:02:35,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:35,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:35,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:35,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:35,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:35,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:35,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:35,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:35,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-15 17:02:35,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:35,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:35,953 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) [2021-12-15 17:02:35,954 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 [2021-12-15 17:02:35,955 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 [2021-12-15 17:02:35,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:35,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:35,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:35,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:35,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:35,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:35,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:35,995 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 [2021-12-15 17:02:35,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:35,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:36,039 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) [2021-12-15 17:02:36,040 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 [2021-12-15 17:02:36,041 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 [2021-12-15 17:02:36,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:36,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:36,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:36,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:36,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:36,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:36,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:36,088 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 [2021-12-15 17:02:36,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:36,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:36,089 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) [2021-12-15 17:02:36,090 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 [2021-12-15 17:02:36,092 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 [2021-12-15 17:02:36,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:36,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:36,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:36,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:36,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:36,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:36,127 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:02:36,157 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-15 17:02:36,157 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-15 17:02:36,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:36,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:36,175 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) [2021-12-15 17:02:36,180 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 [2021-12-15 17:02:36,180 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:02:36,204 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:02:36,205 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:02:36,205 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_1 Supporting invariants [] [2021-12-15 17:02:36,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:36,253 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-15 17:02:36,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:36,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:02:36,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:36,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 17:02:36,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:36,361 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 [2021-12-15 17:02:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:02:36,435 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-15 17:02:36,436 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-12-15 17:02:36,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 48 transitions. Complement of second has 10 states. [2021-12-15 17:02:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-12-15 17:02:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-12-15 17:02:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-12-15 17:02:36,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2021-12-15 17:02:36,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:36,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 10 letters. Loop has 8 letters. [2021-12-15 17:02:36,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:36,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 16 letters. [2021-12-15 17:02:36,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:36,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 48 transitions. [2021-12-15 17:02:36,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-12-15 17:02:36,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 38 states and 46 transitions. [2021-12-15 17:02:36,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-15 17:02:36,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-15 17:02:36,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2021-12-15 17:02:36,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:02:36,545 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-12-15 17:02:36,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2021-12-15 17:02:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2021-12-15 17:02:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 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) [2021-12-15 17:02:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-12-15 17:02:36,547 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-12-15 17:02:36,548 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-12-15 17:02:36,548 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-15 17:02:36,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2021-12-15 17:02:36,548 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-12-15 17:02:36,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:36,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:36,549 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-15 17:02:36,549 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1, 1, 1, 1, 1] [2021-12-15 17:02:36,549 INFO L791 eck$LassoCheckResult]: Stem: 414#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 415#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 433#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 431#L553-1 [2021-12-15 17:02:36,549 INFO L793 eck$LassoCheckResult]: Loop: 431#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 420#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 421#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 416#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 417#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 434#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 443#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 442#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 441#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 428#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 431#L553-1 [2021-12-15 17:02:36,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:36,550 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-15 17:02:36,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:36,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367445874] [2021-12-15 17:02:36,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:36,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:36,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:36,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:36,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:36,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1479493138, now seen corresponding path program 2 times [2021-12-15 17:02:36,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:36,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545338889] [2021-12-15 17:02:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:36,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:36,576 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:36,588 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 376307409, now seen corresponding path program 1 times [2021-12-15 17:02:36,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:36,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342425279] [2021-12-15 17:02:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:36,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:36,601 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:36,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:36,841 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 [2021-12-15 17:02:37,269 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:02:37,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:02:37,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:02:37,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:02:37,269 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:02:37,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:37,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:02:37,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:02:37,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration7_Lasso [2021-12-15 17:02:37,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:02:37,269 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:02:37,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:37,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:38,291 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:02:38,291 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:02:38,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,293 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) [2021-12-15 17:02:38,300 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 [2021-12-15 17:02:38,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,311 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 [2021-12-15 17:02:38,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,346 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 [2021-12-15 17:02:38,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,348 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) [2021-12-15 17:02:38,354 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 [2021-12-15 17:02:38,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,365 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 [2021-12-15 17:02:38,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,392 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 [2021-12-15 17:02:38,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,394 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) [2021-12-15 17:02:38,402 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 [2021-12-15 17:02:38,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,413 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 [2021-12-15 17:02:38,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,450 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 [2021-12-15 17:02:38,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,452 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) [2021-12-15 17:02:38,453 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 [2021-12-15 17:02:38,455 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 [2021-12-15 17:02:38,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:38,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,507 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) [2021-12-15 17:02:38,512 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 [2021-12-15 17:02:38,512 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 [2021-12-15 17:02:38,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-15 17:02:38,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,551 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) [2021-12-15 17:02:38,552 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 [2021-12-15 17:02:38,553 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 [2021-12-15 17:02:38,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:38,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:38,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,598 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 [2021-12-15 17:02:38,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,599 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) [2021-12-15 17:02:38,602 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 [2021-12-15 17:02:38,602 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 [2021-12-15 17:02:38,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,626 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 [2021-12-15 17:02:38,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,635 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) [2021-12-15 17:02:38,637 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 [2021-12-15 17:02:38,639 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 [2021-12-15 17:02:38,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,664 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 [2021-12-15 17:02:38,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,665 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) [2021-12-15 17:02:38,666 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 [2021-12-15 17:02:38,668 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 [2021-12-15 17:02:38,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-15 17:02:38,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,692 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) [2021-12-15 17:02:38,695 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 [2021-12-15 17:02:38,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:02:38,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:38,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:38,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-15 17:02:38,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,738 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) [2021-12-15 17:02:38,739 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 [2021-12-15 17:02:38,741 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 [2021-12-15 17:02:38,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,749 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,764 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 [2021-12-15 17:02:38,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,765 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) [2021-12-15 17:02:38,766 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 [2021-12-15 17:02:38,768 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 [2021-12-15 17:02:38,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,791 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 [2021-12-15 17:02:38,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,792 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) [2021-12-15 17:02:38,793 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 [2021-12-15 17:02:38,798 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 [2021-12-15 17:02:38,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,821 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 [2021-12-15 17:02:38,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,822 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) [2021-12-15 17:02:38,823 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 [2021-12-15 17:02:38,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:02:38,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:38,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:38,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:38,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,850 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:38,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-15 17:02:38,854 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 [2021-12-15 17:02:38,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:38,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:38,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:38,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:38,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,878 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:38,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-15 17:02:38,880 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 [2021-12-15 17:02:38,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:38,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:38,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:38,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:38,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-15 17:02:38,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:38,932 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:38,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-15 17:02:38,941 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 [2021-12-15 17:02:38,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:38,948 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-15 17:02:38,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:38,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:38,959 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-12-15 17:02:38,959 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:38,972 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:02:38,999 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-15 17:02:38,999 INFO L444 ModelExtractionUtils]: 15 out of 34 variables were initially zero. Simplification set additionally 17 variables to zero. [2021-12-15 17:02:38,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:38,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:39,000 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:39,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-15 17:02:39,003 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:02:39,009 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:02:39,009 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:02:39,009 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_2 Supporting invariants [] [2021-12-15 17:02:39,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:39,059 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-15 17:02:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:39,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:02:39,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:39,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 17:02:39,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:39,160 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 17:02:39,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2021-12-15 17:02:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-15 17:02:39,233 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-12-15 17:02:39,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:39,336 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 10. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 75 transitions. Complement of second has 12 states. [2021-12-15 17:02:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-12-15 17:02:39,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2021-12-15 17:02:39,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 3 letters. Loop has 10 letters. [2021-12-15 17:02:39,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:39,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 13 letters. Loop has 10 letters. [2021-12-15 17:02:39,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:39,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 3 letters. Loop has 20 letters. [2021-12-15 17:02:39,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:39,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 75 transitions. [2021-12-15 17:02:39,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:02:39,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 50 states and 64 transitions. [2021-12-15 17:02:39,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-15 17:02:39,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-15 17:02:39,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 64 transitions. [2021-12-15 17:02:39,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:02:39,341 INFO L681 BuchiCegarLoop]: Abstraction has 50 states and 64 transitions. [2021-12-15 17:02:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 64 transitions. [2021-12-15 17:02:39,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2021-12-15 17:02:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 48 states have internal predecessors, (63), 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) [2021-12-15 17:02:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2021-12-15 17:02:39,344 INFO L704 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2021-12-15 17:02:39,344 INFO L587 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2021-12-15 17:02:39,344 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-15 17:02:39,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 63 transitions. [2021-12-15 17:02:39,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:02:39,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:39,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:39,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:02:39,345 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:02:39,345 INFO L791 eck$LassoCheckResult]: Stem: 625#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 626#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 643#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 644#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 645#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 649#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 650#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 673#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 671#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 628#L555-1 [2021-12-15 17:02:39,345 INFO L793 eck$LassoCheckResult]: Loop: 628#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 627#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 628#L555-1 [2021-12-15 17:02:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1215264812, now seen corresponding path program 1 times [2021-12-15 17:02:39,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:39,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960067270] [2021-12-15 17:02:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:39,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:39,356 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:39,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:39,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:39,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 1 times [2021-12-15 17:02:39,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:39,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822154482] [2021-12-15 17:02:39,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:39,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:39,376 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:39,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash -361619193, now seen corresponding path program 2 times [2021-12-15 17:02:39,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:39,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291771478] [2021-12-15 17:02:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:39,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:39,412 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:39,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:39,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-15 17:02:40,028 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:02:40,028 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:02:40,028 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:02:40,028 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:02:40,028 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:02:40,028 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:40,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:02:40,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:02:40,028 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration8_Lasso [2021-12-15 17:02:40,028 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:02:40,028 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:02:40,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:40,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:02:40,507 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:02:40,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:40,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:40,511 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:40,519 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 [2021-12-15 17:02:40,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-15 17:02:40,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:40,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:40,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:40,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:40,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:40,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:40,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:40,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:40,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:40,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:40,553 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:40,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-15 17:02:40,556 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 [2021-12-15 17:02:40,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:40,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:40,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:40,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:40,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:40,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:40,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:40,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:40,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:40,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:40,586 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:40,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-15 17:02:40,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:02:40,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:40,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:40,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:40,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:40,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:40,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:40,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:40,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-15 17:02:40,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:40,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:40,617 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:40,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-15 17:02:40,619 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 [2021-12-15 17:02:40,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:40,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:40,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:40,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:40,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:40,626 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:40,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:40,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-15 17:02:40,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:40,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:40,648 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:40,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-15 17:02:40,650 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 [2021-12-15 17:02:40,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:40,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:40,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:40,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:40,662 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:40,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:40,682 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:02:40,691 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-15 17:02:40,692 INFO L444 ModelExtractionUtils]: 24 out of 31 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-15 17:02:40,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:40,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:40,693 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:40,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-15 17:02:40,694 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:02:40,701 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-15 17:02:40,701 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:02:40,701 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_3 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0#1.base) ULTIMATE.start_test_fun_~x_ref~0#1.offset)_3 - 1*ULTIMATE.start_test_fun_#t~mem9#1 >= 0] [2021-12-15 17:02:40,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:40,774 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-12-15 17:02:40,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:40,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 17:02:40,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:40,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 17:02:40,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:40,859 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 35 treesize of output 19 [2021-12-15 17:02:40,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:40,872 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:02:40,872 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 21 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:40,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 21. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 102 states and 128 transitions. Complement of second has 6 states. [2021-12-15 17:02:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2021-12-15 17:02:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-15 17:02:40,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-15 17:02:40,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:40,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2021-12-15 17:02:40,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:40,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-15 17:02:40,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:40,908 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 128 transitions. [2021-12-15 17:02:40,909 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-12-15 17:02:40,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 94 states and 119 transitions. [2021-12-15 17:02:40,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-15 17:02:40,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-15 17:02:40,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 119 transitions. [2021-12-15 17:02:40,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:02:40,911 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 119 transitions. [2021-12-15 17:02:40,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 119 transitions. [2021-12-15 17:02:40,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2021-12-15 17:02:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.2875) internal successors, (103), 79 states have internal predecessors, (103), 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) [2021-12-15 17:02:40,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2021-12-15 17:02:40,915 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 103 transitions. [2021-12-15 17:02:40,916 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 103 transitions. [2021-12-15 17:02:40,916 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-15 17:02:40,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 103 transitions. [2021-12-15 17:02:40,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:02:40,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:40,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:40,917 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:02:40,917 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:02:40,917 INFO L791 eck$LassoCheckResult]: Stem: 884#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 885#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 900#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 904#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 890#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 891#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 906#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 962#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 936#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 893#L559-1 [2021-12-15 17:02:40,918 INFO L793 eck$LassoCheckResult]: Loop: 893#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 892#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 893#L559-1 [2021-12-15 17:02:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:40,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1215726572, now seen corresponding path program 1 times [2021-12-15 17:02:40,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:40,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320020907] [2021-12-15 17:02:40,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:40,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:40,928 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:40,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:40,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:40,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 1 times [2021-12-15 17:02:40,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:40,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180066022] [2021-12-15 17:02:40,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:40,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:40,948 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:40,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:40,952 INFO L85 PathProgramCache]: Analyzing trace with hash 82132647, now seen corresponding path program 2 times [2021-12-15 17:02:40,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:40,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614921260] [2021-12-15 17:02:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:40,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:40,974 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:40,990 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:41,493 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:02:41,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:02:41,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:02:41,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:02:41,493 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:02:41,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:41,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:02:41,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:02:41,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration9_Lasso [2021-12-15 17:02:41,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:02:41,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:02:41,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:02:41,962 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:02:41,962 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:02:41,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:41,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:41,968 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:41,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-15 17:02:41,970 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 [2021-12-15 17:02:41,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:41,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:41,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:41,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:41,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:41,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:41,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:41,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:41,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-15 17:02:41,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:41,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:41,994 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:41,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-15 17:02:41,996 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 [2021-12-15 17:02:42,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-15 17:02:42,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,020 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-15 17:02:42,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:02:42,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:42,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:42,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,057 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-15 17:02:42,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:02:42,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-15 17:02:42,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,083 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-15 17:02:42,085 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 [2021-12-15 17:02:42,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,115 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-15 17:02:42,117 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 [2021-12-15 17:02:42,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:42,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:42,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-15 17:02:42,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,143 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-15 17:02:42,145 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 [2021-12-15 17:02:42,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-15 17:02:42,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,168 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-15 17:02:42,171 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 [2021-12-15 17:02:42,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-15 17:02:42,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,204 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-15 17:02:42,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:02:42,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,232 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-15 17:02:42,234 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 [2021-12-15 17:02:42,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:42,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:42,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-15 17:02:42,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,267 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-15 17:02:42,270 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 [2021-12-15 17:02:42,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-15 17:02:42,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,293 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-15 17:02:42,295 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 [2021-12-15 17:02:42,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:02:42,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:02:42,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:02:42,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,353 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,355 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 [2021-12-15 17:02:42,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,366 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:42,366 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:42,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-15 17:02:42,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,404 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,407 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 [2021-12-15 17:02:42,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:42,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:42,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-15 17:02:42,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,460 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,463 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 [2021-12-15 17:02:42,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:42,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:42,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-15 17:02:42,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:02:42,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,511 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,515 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 [2021-12-15 17:02:42,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-15 17:02:42,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:02:42,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:02:42,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:02:42,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:02:42,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:02:42,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:02:42,542 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:02:42,572 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2021-12-15 17:02:42,572 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-12-15 17:02:42,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:02:42,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:02:42,576 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:02:42,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:02:42,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-15 17:02:42,586 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-15 17:02:42,586 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:02:42,586 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_#t~mem11#1) = 1*ULTIMATE.start_test_fun_#t~mem11#1 Supporting invariants [1*ULTIMATE.start_test_fun_#t~mem11#1 - 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0#1.base) ULTIMATE.start_test_fun_~y_ref~0#1.offset)_4 >= 0] [2021-12-15 17:02:42,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-15 17:02:42,621 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-12-15 17:02:42,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:42,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 17:02:42,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:42,677 WARN L261 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-15 17:02:42,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:02:42,690 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 [2021-12-15 17:02:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:02:42,730 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:02:42,730 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 103 transitions. cyclomatic complexity: 35 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:42,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-12-15 17:02:42,755 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 103 transitions. cyclomatic complexity: 35. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 163 states and 210 transitions. Complement of second has 5 states. [2021-12-15 17:02:42,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-15 17:02:42,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:02:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2021-12-15 17:02:42,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-15 17:02:42,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:42,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2021-12-15 17:02:42,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:42,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-15 17:02:42,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:02:42,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 210 transitions. [2021-12-15 17:02:42,761 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-12-15 17:02:42,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 151 states and 194 transitions. [2021-12-15 17:02:42,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-15 17:02:42,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-15 17:02:42,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 194 transitions. [2021-12-15 17:02:42,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:02:42,763 INFO L681 BuchiCegarLoop]: Abstraction has 151 states and 194 transitions. [2021-12-15 17:02:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 194 transitions. [2021-12-15 17:02:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 110. [2021-12-15 17:02:42,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 109 states have internal predecessors, (141), 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) [2021-12-15 17:02:42,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2021-12-15 17:02:42,769 INFO L704 BuchiCegarLoop]: Abstraction has 110 states and 141 transitions. [2021-12-15 17:02:42,769 INFO L587 BuchiCegarLoop]: Abstraction has 110 states and 141 transitions. [2021-12-15 17:02:42,769 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-15 17:02:42,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 141 transitions. [2021-12-15 17:02:42,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:02:42,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:42,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:42,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1] [2021-12-15 17:02:42,770 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:02:42,770 INFO L791 eck$LassoCheckResult]: Stem: 1230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1244#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 1247#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 1302#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1301#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 1300#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1299#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 1259#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1252#L559-1 assume !(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1; 1258#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 1257#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 1256#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1255#L554 assume !(test_fun_#t~mem7#1 > test_fun_#t~mem8#1);havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 1254#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1253#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 1251#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1239#L559-1 [2021-12-15 17:02:42,770 INFO L793 eck$LassoCheckResult]: Loop: 1239#L559-1 assume !!(test_fun_#t~mem11#1 > 0);havoc test_fun_#t~mem11#1;call test_fun_#t~mem12#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);call write~int(test_fun_#t~mem12#1 - 1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);havoc test_fun_#t~mem12#1; 1238#L559-3 call test_fun_#t~mem11#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1239#L559-1 [2021-12-15 17:02:42,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2055714993, now seen corresponding path program 2 times [2021-12-15 17:02:42,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:42,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897775355] [2021-12-15 17:02:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:42,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:42,803 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-15 17:02:42,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:02:42,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897775355] [2021-12-15 17:02:42,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897775355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:02:42,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:02:42,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:02:42,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725238748] [2021-12-15 17:02:42,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:02:42,804 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:02:42,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:42,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 2 times [2021-12-15 17:02:42,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:42,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228717283] [2021-12-15 17:02:42,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:42,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:42,810 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:42,812 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:42,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:02:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:02:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:02:42,845 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. cyclomatic complexity: 47 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-15 17:02:42,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:02:42,876 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2021-12-15 17:02:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:02:42,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 105 transitions. [2021-12-15 17:02:42,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:02:42,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 24 states and 27 transitions. [2021-12-15 17:02:42,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-15 17:02:42,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-15 17:02:42,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2021-12-15 17:02:42,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:02:42,878 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-12-15 17:02:42,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2021-12-15 17:02:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-15 17:02:42,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 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) [2021-12-15 17:02:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-12-15 17:02:42,885 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-12-15 17:02:42,885 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-12-15 17:02:42,885 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-12-15 17:02:42,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2021-12-15 17:02:42,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:02:42,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:02:42,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:02:42,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 3, 2, 2, 2, 2, 1, 1, 1] [2021-12-15 17:02:42,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:02:42,887 INFO L791 eck$LassoCheckResult]: Stem: 1438#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1439#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~ret20#1;assume { :begin_inline_test_fun } true;test_fun_#in~x#1, test_fun_#in~y#1 := main_#t~nondet18#1, main_#t~nondet19#1;havoc test_fun_#res#1;havoc test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset, test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset, test_fun_#t~mem7#1, test_fun_#t~mem8#1, test_fun_#t~mem10#1, test_fun_#t~mem9#1, test_fun_#t~mem12#1, test_fun_#t~mem11#1, test_fun_#t~mem4#1, test_fun_#t~mem5#1, test_fun_#t~short6#1, test_fun_#t~mem13#1, test_fun_#t~mem14#1, test_fun_#t~short15#1, test_fun_#t~mem16#1, test_fun_#t~mem17#1, test_fun_~x#1, test_fun_~y#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset;test_fun_~x#1 := test_fun_#in~x#1;test_fun_~y#1 := test_fun_#in~y#1;call test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset := test_fun_#t~malloc2#1.base, test_fun_#t~malloc2#1.offset;call test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset := test_fun_#t~malloc3#1.base, test_fun_#t~malloc3#1.offset;call write~int(test_fun_~x#1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_~y#1, test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1446#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 1447#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 1444#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1445#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 1452#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 1450#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 1442#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 1443#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 1461#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 1453#L555-1 assume !(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1; 1451#L559-4 call test_fun_#t~mem4#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem4#1 > 0; 1448#L553-1 assume test_fun_#t~short6#1;call test_fun_#t~mem5#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4);test_fun_#t~short6#1 := test_fun_#t~mem5#1 > 0; 1449#L553-3 assume !!test_fun_#t~short6#1;havoc test_fun_#t~mem4#1;havoc test_fun_#t~mem5#1;havoc test_fun_#t~short6#1;call test_fun_#t~mem7#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call test_fun_#t~mem8#1 := read~int(test_fun_~y_ref~0#1.base, test_fun_~y_ref~0#1.offset, 4); 1458#L554 assume test_fun_#t~mem7#1 > test_fun_#t~mem8#1;havoc test_fun_#t~mem7#1;havoc test_fun_#t~mem8#1; 1457#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 1456#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 1454#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 1441#L555-1 [2021-12-15 17:02:42,887 INFO L793 eck$LassoCheckResult]: Loop: 1441#L555-1 assume !!(test_fun_#t~mem9#1 > 0);havoc test_fun_#t~mem9#1;call test_fun_#t~mem10#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);call write~int(test_fun_#t~mem10#1 - 1, test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4);havoc test_fun_#t~mem10#1; 1440#L555-3 call test_fun_#t~mem9#1 := read~int(test_fun_~x_ref~0#1.base, test_fun_~x_ref~0#1.offset, 4); 1441#L555-1 [2021-12-15 17:02:42,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:42,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2121929575, now seen corresponding path program 2 times [2021-12-15 17:02:42,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:42,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670326240] [2021-12-15 17:02:42,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:42,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:02:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-15 17:02:42,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:02:42,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670326240] [2021-12-15 17:02:42,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670326240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:02:42,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:02:42,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:02:42,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363389201] [2021-12-15 17:02:42,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:02:42,935 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:02:42,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:02:42,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 2 times [2021-12-15 17:02:42,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:02:42,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435522249] [2021-12-15 17:02:42,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:02:42,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:02:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:42,940 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:02:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:02:42,943 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:02:42,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:02:42,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:02:42,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 17:02:42,971 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-15 17:02:42,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:02:42,991 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-12-15 17:02:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:02:42,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2021-12-15 17:02:42,992 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:02:42,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-12-15 17:02:42,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-15 17:02:42,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-15 17:02:42,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-15 17:02:42,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:02:42,993 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:02:42,993 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:02:42,993 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:02:42,993 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-12-15 17:02:42,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-15 17:02:42,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:02:42,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-15 17:02:42,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.12 05:02:42 BoogieIcfgContainer [2021-12-15 17:02:42,999 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-15 17:02:42,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 17:02:42,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 17:02:43,000 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 17:02:43,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:02:33" (3/4) ... [2021-12-15 17:02:43,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 17:02:43,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 17:02:43,003 INFO L158 Benchmark]: Toolchain (without parser) took 10723.34ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 75.0MB in the beginning and 97.9MB in the end (delta: -22.9MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2021-12-15 17:02:43,003 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:02:43,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.04ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 79.3MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:02:43,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.77ms. Allocated memory is still 107.0MB. Free memory was 79.3MB in the beginning and 77.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:02:43,004 INFO L158 Benchmark]: Boogie Preprocessor took 28.73ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 76.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:02:43,004 INFO L158 Benchmark]: RCFGBuilder took 268.47ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 64.6MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 17:02:43,005 INFO L158 Benchmark]: BuchiAutomizer took 9976.91ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 64.6MB in the beginning and 97.9MB in the end (delta: -33.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2021-12-15 17:02:43,005 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 157.3MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:02:43,006 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.04ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 79.3MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.77ms. Allocated memory is still 107.0MB. Free memory was 79.3MB in the beginning and 77.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.73ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 76.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.47ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 64.6MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 9976.91ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 64.6MB in the beginning and 97.9MB in the end (delta: -33.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 157.3MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (7 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[y_ref][y_ref] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 7 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 4 locations. One deterministic module has affine ranking function org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@1802024c and consists of 3 locations. 7 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.9s and 12 iterations. TraceHistogramMax:5. Analysis of lassos took 8.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 72 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 110 states and ocurred in iteration 9. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 8/8 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 11 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 221 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 114 mSDtfsCounter, 221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI5 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital228 mio100 ax108 hnf100 lsp90 ukn71 mio100 lsp33 div100 bol103 ite100 ukn100 eq186 hnf88 smp97 dnf138 smp89 tf100 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 77ms VariablesStem: 10 VariablesLoop: 7 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-15 17:02:43,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 17:02:43,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE