./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/array17_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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-15/array17_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 c64c4370fd8b6e918e28e5e9f3a24e52a6875ae7268f4c7e3f97f19ee293047c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:42:21,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:42:21,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:42:21,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:42:21,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:42:21,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:42:21,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:42:21,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:42:21,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:42:21,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:42:21,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:42:21,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:42:21,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:42:21,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:42:21,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:42:21,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:42:21,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:42:21,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:42:21,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:42:21,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:42:21,277 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:42:21,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:42:21,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:42:21,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:42:21,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:42:21,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:42:21,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:42:21,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:42:21,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:42:21,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:42:21,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:42:21,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:42:21,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:42:21,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:42:21,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:42:21,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:42:21,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:42:21,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:42:21,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:42:21,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:42:21,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:42:21,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:42:21,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:42:21,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:42:21,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:42:21,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:42:21,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:42:21,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:42:21,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:42:21,307 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:42:21,307 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:42:21,307 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:42:21,307 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:42:21,323 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:42:21,323 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:42:21,323 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:42:21,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:42:21,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:42:21,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:42:21,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:42:21,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:42:21,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:42:21,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:42:21,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:42:21,326 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:42:21,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:42:21,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:42:21,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:42:21,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:42:21,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:42:21,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:42:21,327 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:42:21,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64c4370fd8b6e918e28e5e9f3a24e52a6875ae7268f4c7e3f97f19ee293047c [2022-07-22 01:42:21,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:42:21,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:42:21,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:42:21,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:42:21,701 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:42:21,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/array17_alloca.i [2022-07-22 01:42:21,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee4afbfd1/ca3f5f6674404e3abb9f0ff485166590/FLAG7bde11ad4 [2022-07-22 01:42:22,231 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:42:22,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/array17_alloca.i [2022-07-22 01:42:22,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee4afbfd1/ca3f5f6674404e3abb9f0ff485166590/FLAG7bde11ad4 [2022-07-22 01:42:22,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee4afbfd1/ca3f5f6674404e3abb9f0ff485166590 [2022-07-22 01:42:22,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:42:22,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:42:22,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:42:22,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:42:22,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:42:22,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b32932c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22, skipping insertion in model container [2022-07-22 01:42:22,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:42:22,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:42:22,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:42:22,568 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:42:22,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:42:22,638 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:42:22,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22 WrapperNode [2022-07-22 01:42:22,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:42:22,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:42:22,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:42:22,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:42:22,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,669 INFO L137 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-07-22 01:42:22,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:42:22,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:42:22,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:42:22,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:42:22,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:42:22,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:42:22,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:42:22,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:42:22,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (1/1) ... [2022-07-22 01:42:22,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:22,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:22,729 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) [2022-07-22 01:42:22,763 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 [2022-07-22 01:42:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:42:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:42:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:42:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:42:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:42:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:42:22,837 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:42:22,839 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:42:22,972 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:42:22,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:42:22,976 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 01:42:22,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:42:22 BoogieIcfgContainer [2022-07-22 01:42:22,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:42:22,996 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:42:22,996 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:42:22,998 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:42:22,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:42:22,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:42:22" (1/3) ... [2022-07-22 01:42:23,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1264c201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:42:22, skipping insertion in model container [2022-07-22 01:42:23,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:42:23,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:42:22" (2/3) ... [2022-07-22 01:42:23,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1264c201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:42:23, skipping insertion in model container [2022-07-22 01:42:23,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:42:23,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:42:22" (3/3) ... [2022-07-22 01:42:23,001 INFO L354 chiAutomizerObserver]: Analyzing ICFG array17_alloca.i [2022-07-22 01:42:23,061 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:42:23,069 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:42:23,069 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:42:23,069 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:42:23,069 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:42:23,069 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:42:23,070 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:42:23,070 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:42:23,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 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) [2022-07-22 01:42:23,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-22 01:42:23,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:23,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:23,105 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:42:23,119 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:23,119 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:42:23,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 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) [2022-07-22 01:42:23,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-22 01:42:23,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:23,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:23,121 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:42:23,122 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:23,126 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 13#L367true assume !(main_~length~0#1 < 1); 11#L367-2true assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 14#L371true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 16#L373true assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 4#L375-3true [2022-07-22 01:42:23,127 INFO L754 eck$LassoCheckResult]: Loop: 4#L375-3true assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 9#L375-2true main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 4#L375-3true [2022-07-22 01:42:23,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:23,131 INFO L85 PathProgramCache]: Analyzing trace with hash 889572334, now seen corresponding path program 1 times [2022-07-22 01:42:23,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:23,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152316090] [2022-07-22 01:42:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:23,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:23,248 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:23,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:23,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1955, now seen corresponding path program 1 times [2022-07-22 01:42:23,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:23,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58734105] [2022-07-22 01:42:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:23,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:23,306 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:23,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash 180522064, now seen corresponding path program 1 times [2022-07-22 01:42:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:23,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233306031] [2022-07-22 01:42:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:23,335 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:23,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:23,610 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:42:23,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:42:23,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:42:23,611 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:42:23,611 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:42:23,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:23,611 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:42:23,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:42:23,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: array17_alloca.i_Iteration1_Lasso [2022-07-22 01:42:23,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:42:23,612 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:42:23,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:23,926 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:42:23,928 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:42:23,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:23,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:42:23,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 01:42:23,938 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 [2022-07-22 01:42:23,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:23,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:23,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:23,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:23,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:23,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:23,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:23,957 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:23,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 01:42:23,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:23,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:23,977 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) [2022-07-22 01:42:23,978 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 [2022-07-22 01:42:23,980 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 [2022-07-22 01:42:23,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:23,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:23,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:23,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:23,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:23,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:24,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,047 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 [2022-07-22 01:42:24,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,048 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) [2022-07-22 01:42:24,050 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 [2022-07-22 01:42:24,051 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 [2022-07-22 01:42:24,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,075 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 [2022-07-22 01:42:24,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,077 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) [2022-07-22 01:42:24,078 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 [2022-07-22 01:42:24,079 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 [2022-07-22 01:42:24,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,086 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,123 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 [2022-07-22 01:42:24,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,125 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) [2022-07-22 01:42:24,129 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 [2022-07-22 01:42:24,130 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 [2022-07-22 01:42:24,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-22 01:42:24,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,169 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) [2022-07-22 01:42:24,170 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 [2022-07-22 01:42:24,171 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 [2022-07-22 01:42:24,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-22 01:42:24,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,200 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) [2022-07-22 01:42:24,203 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 [2022-07-22 01:42:24,225 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 [2022-07-22 01:42:24,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,268 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 [2022-07-22 01:42:24,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,270 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) [2022-07-22 01:42:24,271 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 [2022-07-22 01:42:24,272 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 [2022-07-22 01:42:24,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,308 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 [2022-07-22 01:42:24,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,310 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) [2022-07-22 01:42:24,311 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 [2022-07-22 01:42:24,312 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 [2022-07-22 01:42:24,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,349 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 [2022-07-22 01:42:24,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,351 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) [2022-07-22 01:42:24,354 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 [2022-07-22 01:42:24,355 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 [2022-07-22 01:42:24,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-22 01:42:24,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,381 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) [2022-07-22 01:42:24,381 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 [2022-07-22 01:42:24,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:42:24,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:24,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:24,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,440 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 [2022-07-22 01:42:24,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,451 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) [2022-07-22 01:42:24,452 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 [2022-07-22 01:42:24,457 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 [2022-07-22 01:42:24,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:24,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:24,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:24,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 01:42:24,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,486 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) [2022-07-22 01:42:24,499 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 [2022-07-22 01:42:24,499 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 [2022-07-22 01:42:24,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:24,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:24,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,554 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 [2022-07-22 01:42:24,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,556 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) [2022-07-22 01:42:24,556 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 [2022-07-22 01:42:24,558 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 [2022-07-22 01:42:24,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:24,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:24,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:24,611 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 [2022-07-22 01:42:24,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,628 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) [2022-07-22 01:42:24,630 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 [2022-07-22 01:42:24,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:42:24,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:24,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:24,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:24,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:24,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:24,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:24,660 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:42:24,719 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2022-07-22 01:42:24,719 INFO L444 ModelExtractionUtils]: 1 out of 22 variables were initially zero. Simplification set additionally 18 variables to zero. [2022-07-22 01:42:24,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:24,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:24,731 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) [2022-07-22 01:42:24,772 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:42:24,778 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 [2022-07-22 01:42:24,796 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:42:24,796 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:42:24,797 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~length~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~length~0#1 Supporting invariants [] [2022-07-22 01:42:24,828 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 [2022-07-22 01:42:24,835 INFO L293 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-07-22 01:42:24,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:24,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:42:24,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:24,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:42:24,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:24,937 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 [2022-07-22 01:42:24,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 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) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:24,982 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 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). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 49 transitions. Complement of second has 7 states. [2022-07-22 01:42:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:42:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2022-07-22 01:42:24,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-22 01:42:24,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:42:24,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-22 01:42:24,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:42:24,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-22 01:42:24,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:42:24,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 49 transitions. [2022-07-22 01:42:24,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:24,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 12 states and 16 transitions. [2022-07-22 01:42:25,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-07-22 01:42:25,000 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-22 01:42:25,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2022-07-22 01:42:25,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:42:25,001 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-07-22 01:42:25,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2022-07-22 01:42:25,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-07-22 01:42:25,016 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) [2022-07-22 01:42:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-07-22 01:42:25,017 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-07-22 01:42:25,017 INFO L374 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-07-22 01:42:25,017 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:42:25,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-07-22 01:42:25,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:25,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:25,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:25,019 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:42:25,019 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:25,019 INFO L752 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 122#L367 assume !(main_~length~0#1 < 1); 120#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 121#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 123#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 114#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 115#L375-4 main_~j~0#1 := 1; 112#L380-2 [2022-07-22 01:42:25,020 INFO L754 eck$LassoCheckResult]: Loop: 112#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 113#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 112#L380-2 [2022-07-22 01:42:25,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,020 INFO L85 PathProgramCache]: Analyzing trace with hash 180522006, now seen corresponding path program 1 times [2022-07-22 01:42:25,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481015480] [2022-07-22 01:42:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:25,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:42:25,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481015480] [2022-07-22 01:42:25,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481015480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:42:25,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:42:25,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:42:25,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526630614] [2022-07-22 01:42:25,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:42:25,057 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:42:25,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 1 times [2022-07-22 01:42:25,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682107389] [2022-07-22 01:42:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:25,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:42:25,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:42:25,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:42:25,120 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:42:25,135 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2022-07-22 01:42:25,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:42:25,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2022-07-22 01:42:25,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:25,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2022-07-22 01:42:25,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-22 01:42:25,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-22 01:42:25,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2022-07-22 01:42:25,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:42:25,137 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-07-22 01:42:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2022-07-22 01:42:25,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-07-22 01:42:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-07-22 01:42:25,138 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-22 01:42:25,138 INFO L374 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-22 01:42:25,138 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:42:25,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-07-22 01:42:25,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:25,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:25,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:25,139 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:42:25,139 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:25,140 INFO L752 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 154#L367 assume !(main_~length~0#1 < 1); 148#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 149#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 155#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 150#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 151#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 152#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 153#L375-4 main_~j~0#1 := 1; 144#L380-2 [2022-07-22 01:42:25,140 INFO L754 eck$LassoCheckResult]: Loop: 144#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 145#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 144#L380-2 [2022-07-22 01:42:25,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1683012600, now seen corresponding path program 1 times [2022-07-22 01:42:25,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956943141] [2022-07-22 01:42:25,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:25,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 2 times [2022-07-22 01:42:25,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170780350] [2022-07-22 01:42:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1827560517, now seen corresponding path program 1 times [2022-07-22 01:42:25,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666170444] [2022-07-22 01:42:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:25,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:42:25,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666170444] [2022-07-22 01:42:25,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666170444] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:42:25,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083051875] [2022-07-22 01:42:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:42:25,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:25,207 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:42:25,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 01:42:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:25,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:42:25,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:25,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:42:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:25,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083051875] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:42:25,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:42:25,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2022-07-22 01:42:25,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706586930] [2022-07-22 01:42:25,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:42:25,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-22 01:42:25,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:42:25,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 01:42:25,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 01:42:25,355 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:25,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:42:25,399 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-07-22 01:42:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 01:42:25,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2022-07-22 01:42:25,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:25,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 15 states and 17 transitions. [2022-07-22 01:42:25,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-22 01:42:25,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-22 01:42:25,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2022-07-22 01:42:25,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:42:25,401 INFO L369 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-22 01:42:25,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2022-07-22 01:42:25,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-07-22 01:42:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 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) [2022-07-22 01:42:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-22 01:42:25,403 INFO L392 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-22 01:42:25,403 INFO L374 stractBuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-22 01:42:25,403 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:42:25,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2022-07-22 01:42:25,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:25,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:25,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:25,404 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:42:25,404 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:25,404 INFO L752 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 273#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 276#L367 assume !(main_~length~0#1 < 1); 274#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 275#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 277#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 268#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 269#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 270#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 271#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 279#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 278#L375-4 main_~j~0#1 := 1; 266#L380-2 [2022-07-22 01:42:25,404 INFO L754 eck$LassoCheckResult]: Loop: 266#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 267#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 266#L380-2 [2022-07-22 01:42:25,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1827505318, now seen corresponding path program 2 times [2022-07-22 01:42:25,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457046413] [2022-07-22 01:42:25,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,416 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:25,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 3 times [2022-07-22 01:42:25,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030297529] [2022-07-22 01:42:25,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:25,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash 409014941, now seen corresponding path program 2 times [2022-07-22 01:42:25,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:25,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95651325] [2022-07-22 01:42:25,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:25,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,447 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:25,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:25,720 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:42:25,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:42:25,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:42:25,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:42:25,721 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:42:25,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:25,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:42:25,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:42:25,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: array17_alloca.i_Iteration4_Lasso [2022-07-22 01:42:25,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:42:25,721 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:42:25,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:25,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:42:26,109 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:42:26,109 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:42:26,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:26,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,110 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) [2022-07-22 01:42:26,112 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 [2022-07-22 01:42:26,113 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 [2022-07-22 01:42:26,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:26,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:26,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:26,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:26,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:26,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:26,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:26,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:26,152 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 [2022-07-22 01:42:26,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:26,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,154 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) [2022-07-22 01:42:26,159 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 [2022-07-22 01:42:26,159 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 [2022-07-22 01:42:26,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:26,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:26,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:26,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:26,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:26,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:26,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:26,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:26,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 01:42:26,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:26,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,195 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) [2022-07-22 01:42:26,197 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 [2022-07-22 01:42:26,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:42:26,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:26,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:26,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:26,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:26,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:26,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:26,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:26,246 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 [2022-07-22 01:42:26,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:26,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,248 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) [2022-07-22 01:42:26,255 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 [2022-07-22 01:42:26,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:42:26,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:26,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:42:26,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:26,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:26,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:26,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:42:26,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:42:26,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:26,281 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 [2022-07-22 01:42:26,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:26,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,283 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) [2022-07-22 01:42:26,283 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 [2022-07-22 01:42:26,285 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 [2022-07-22 01:42:26,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:26,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:26,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:26,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:26,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:26,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:26,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:42:26,353 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 [2022-07-22 01:42:26,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:26,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,356 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) [2022-07-22 01:42:26,357 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 [2022-07-22 01:42:26,357 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 [2022-07-22 01:42:26,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:42:26,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:42:26,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:42:26,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:42:26,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:42:26,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:42:26,390 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:42:26,416 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-07-22 01:42:26,417 INFO L444 ModelExtractionUtils]: 9 out of 25 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-07-22 01:42:26,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:42:26,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,418 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) [2022-07-22 01:42:26,419 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 [2022-07-22 01:42:26,420 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:42:26,427 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:42:26,427 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:42:26,427 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-22 01:42:26,446 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 [2022-07-22 01:42:26,466 INFO L293 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2022-07-22 01:42:26,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:26,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:42:26,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:26,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:42:26,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:26,503 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 [2022-07-22 01:42:26,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:26,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 16 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 5 states. [2022-07-22 01:42:26,511 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 [2022-07-22 01:42:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2022-07-22 01:42:26,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-22 01:42:26,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:42:26,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2022-07-22 01:42:26,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:42:26,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 4 letters. [2022-07-22 01:42:26,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:42:26,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2022-07-22 01:42:26,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:26,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2022-07-22 01:42:26,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-22 01:42:26,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-22 01:42:26,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2022-07-22 01:42:26,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:42:26,513 INFO L369 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-07-22 01:42:26,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2022-07-22 01:42:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-22 01:42:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 17 states have internal predecessors, (22), 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) [2022-07-22 01:42:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-07-22 01:42:26,514 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-07-22 01:42:26,514 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-07-22 01:42:26,514 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:42:26,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2022-07-22 01:42:26,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:26,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:26,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:26,515 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:42:26,515 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:26,515 INFO L752 eck$LassoCheckResult]: Stem: 390#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 391#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 398#L367 assume !(main_~length~0#1 < 1); 392#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 393#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 399#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 394#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 395#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 396#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 397#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 402#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 400#L375-4 main_~j~0#1 := 1; 401#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 389#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 385#L380-2 [2022-07-22 01:42:26,515 INFO L754 eck$LassoCheckResult]: Loop: 385#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 386#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 385#L380-2 [2022-07-22 01:42:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:26,515 INFO L85 PathProgramCache]: Analyzing trace with hash 409014943, now seen corresponding path program 1 times [2022-07-22 01:42:26,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:26,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970936755] [2022-07-22 01:42:26,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:26,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:26,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:42:26,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970936755] [2022-07-22 01:42:26,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970936755] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:42:26,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737496087] [2022-07-22 01:42:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:26,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:42:26,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:26,663 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:42:26,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-22 01:42:26,696 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 [2022-07-22 01:42:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:26,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-22 01:42:26,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:26,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-22 01:42:26,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:26,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-07-22 01:42:26,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 01:42:26,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:26,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:26,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 01:42:26,808 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 01:42:26,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 18 [2022-07-22 01:42:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:26,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:42:27,364 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~j~0#1_56| Int) (v_ArrVal_60 Int)) (or (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_60)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_56| 4))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1 (- 4))) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1)))) (not (< 0 |v_ULTIMATE.start_main_~j~0#1_56|)) (not (<= |c_ULTIMATE.start_main_~value~0#1| v_ArrVal_60)) (not (<= |v_ULTIMATE.start_main_~j~0#1_56| 1)))) is different from false [2022-07-22 01:42:27,851 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~j~0#1_56| Int) (v_ArrVal_60 Int)) (or (not (< 0 |v_ULTIMATE.start_main_~j~0#1_56|)) (not (<= |c_ULTIMATE.start_main_~value~0#1| v_ArrVal_60)) (not (<= |v_ULTIMATE.start_main_~j~0#1_56| 1)) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4) v_ArrVal_60)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_56| 4))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1 (- 4))) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1)))))) is different from false [2022-07-22 01:42:27,869 INFO L390 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 52 treesize of output 48 [2022-07-22 01:42:27,878 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-07-22 01:42:27,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 814 treesize of output 724 [2022-07-22 01:42:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-07-22 01:42:27,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737496087] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:42:27,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:42:27,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 16 [2022-07-22 01:42:27,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622189822] [2022-07-22 01:42:27,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:42:27,987 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:42:27,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:27,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 4 times [2022-07-22 01:42:27,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:27,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788625493] [2022-07-22 01:42:27,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:27,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:27,990 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:27,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:28,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:42:28,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 01:42:28,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=164, Unknown=2, NotChecked=54, Total=272 [2022-07-22 01:42:28,053 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:42:28,524 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~j~0#1_56| Int) (v_ArrVal_60 Int)) (or (not (< 0 |v_ULTIMATE.start_main_~j~0#1_56|)) (not (<= |c_ULTIMATE.start_main_~value~0#1| v_ArrVal_60)) (not (<= |v_ULTIMATE.start_main_~j~0#1_56| 1)) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4) v_ArrVal_60)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_56| 4))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1 (- 4))) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1)))))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4))) 1) |c_ULTIMATE.start_main_~value~0#1|) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)) is different from false [2022-07-22 01:42:28,985 WARN L833 $PredicateComparison]: unable to prove that (and (<= (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) 0) 1) |c_ULTIMATE.start_main_~value~0#1|) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~j~0#1_56| Int) (v_ArrVal_60 Int)) (or (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_60)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_56| 4))) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1 (- 4))) 1) (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1)))) (not (< 0 |v_ULTIMATE.start_main_~j~0#1_56|)) (not (<= |c_ULTIMATE.start_main_~value~0#1| v_ArrVal_60)) (not (<= |v_ULTIMATE.start_main_~j~0#1_56| 1)))) (<= |c_ULTIMATE.start_main_~i~0#1| 1) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0)) is different from false [2022-07-22 01:42:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:42:29,031 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2022-07-22 01:42:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 01:42:29,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2022-07-22 01:42:29,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-22 01:42:29,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 35 transitions. [2022-07-22 01:42:29,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-22 01:42:29,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-22 01:42:29,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2022-07-22 01:42:29,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:42:29,033 INFO L369 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-22 01:42:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2022-07-22 01:42:29,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2022-07-22 01:42:29,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 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) [2022-07-22 01:42:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-07-22 01:42:29,034 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-07-22 01:42:29,034 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-07-22 01:42:29,034 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:42:29,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2022-07-22 01:42:29,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:29,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:29,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:29,035 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:42:29,035 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:29,035 INFO L752 eck$LassoCheckResult]: Stem: 545#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 546#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 549#L367 assume !(main_~length~0#1 < 1); 547#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 548#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 550#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 541#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 542#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 543#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 544#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 557#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 556#L375-4 main_~j~0#1 := 1; 555#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 539#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 538#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 540#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 536#L380-2 [2022-07-22 01:42:29,035 INFO L754 eck$LassoCheckResult]: Loop: 536#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 537#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 536#L380-2 [2022-07-22 01:42:29,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2073631454, now seen corresponding path program 1 times [2022-07-22 01:42:29,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:29,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073273848] [2022-07-22 01:42:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:29,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:29,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:42:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073273848] [2022-07-22 01:42:29,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073273848] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:42:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351583197] [2022-07-22 01:42:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:29,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:42:29,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:29,077 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:42:29,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-22 01:42:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:29,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:42:29,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:29,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:42:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:29,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351583197] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:42:29,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:42:29,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2022-07-22 01:42:29,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999299656] [2022-07-22 01:42:29,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:42:29,168 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:42:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2436, now seen corresponding path program 5 times [2022-07-22 01:42:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:29,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319424098] [2022-07-22 01:42:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:29,171 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:42:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:42:29,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:42:29,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:42:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 01:42:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-22 01:42:29,243 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2022-07-22 01:42:29,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:42:29,308 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-07-22 01:42:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 01:42:29,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2022-07-22 01:42:29,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:29,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 21 states and 25 transitions. [2022-07-22 01:42:29,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-22 01:42:29,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-07-22 01:42:29,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2022-07-22 01:42:29,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:42:29,315 INFO L369 hiAutomatonCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-07-22 01:42:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2022-07-22 01:42:29,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-07-22 01:42:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 19 states have internal predecessors, (24), 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) [2022-07-22 01:42:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-07-22 01:42:29,322 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-07-22 01:42:29,322 INFO L374 stractBuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-07-22 01:42:29,322 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 01:42:29,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2022-07-22 01:42:29,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-22 01:42:29,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:42:29,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:42:29,325 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:42:29,325 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:42:29,326 INFO L752 eck$LassoCheckResult]: Stem: 703#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 704#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~post209#1, main_#t~post208#1, main_#t~mem210#1, main_#t~mem211#1, main_#t~post212#1, main_#t~post213#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset, main_~value~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 707#L367 assume !(main_~length~0#1 < 1); 705#L367-2 assume !!(main_~length~0#1 <= 536870911);call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 706#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~value~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 708#L373 assume !!(main_~value~0#1 <= 1073741823);main_~i~0#1 := 0; 699#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 700#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 701#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 702#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 713#L375-3 assume !!(main_~i~0#1 < main_~length~0#1);main_#t~post209#1 := main_~value~0#1;main_~value~0#1 := 1 + main_#t~post209#1;call write~int(main_#t~post209#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~post209#1; 712#L375-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 711#L375-3 assume !(main_~i~0#1 < main_~length~0#1); 709#L375-4 main_~j~0#1 := 1; 710#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 698#L380 assume !(main_#t~mem210#1 > main_#t~mem211#1);havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post213#1 := main_~j~0#1;main_~j~0#1 := main_#t~post213#1 - 1;havoc main_#t~post213#1; 694#L380-2 [2022-07-22 01:42:29,326 INFO L754 eck$LassoCheckResult]: Loop: 694#L380-2 assume !!(0 < main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~j~0#1 - 1), 4); 695#L380 assume main_#t~mem210#1 > main_#t~mem211#1;havoc main_#t~mem210#1;havoc main_#t~mem211#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 694#L380-2 [2022-07-22 01:42:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:42:29,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2020585215, now seen corresponding path program 2 times [2022-07-22 01:42:29,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:42:29,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293739815] [2022-07-22 01:42:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:42:29,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:42:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:42:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:29,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:42:29,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293739815] [2022-07-22 01:42:29,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293739815] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:42:29,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534496746] [2022-07-22 01:42:29,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:42:29,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:42:29,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:42:29,555 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:42:29,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-22 01:42:29,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:42:29,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:42:29,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-22 01:42:29,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:42:29,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-22 01:42:29,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:29,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-07-22 01:42:29,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:29,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:29,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:29,732 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 01:42:29,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-07-22 01:42:29,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 01:42:29,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:29,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 01:42:29,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 01:42:29,795 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 01:42:29,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 18 [2022-07-22 01:42:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:42:29,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:42:30,480 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~j~0#1_66| Int) (v_ArrVal_94 Int)) (or (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_94)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_66| 4))) (<= (+ (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset| (- 4))) 1) (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset|)))) (not (< 0 |v_ULTIMATE.start_main_~j~0#1_66|)) (not (<= |v_ULTIMATE.start_main_~j~0#1_66| 1)))) is different from false [2022-07-22 01:42:42,525 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_47| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_47|)) (forall ((|v_ULTIMATE.start_main_~j~0#1_66| Int) (v_ArrVal_94 Int)) (or (not (< 0 |v_ULTIMATE.start_main_~j~0#1_66|)) (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_47| 4)) v_ArrVal_94)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_66| 4))) (<= (+ (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset| (- 4))) 1) (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset|)))) (not (<= |v_ULTIMATE.start_main_~j~0#1_66| 1)))))) is different from false [2022-07-22 01:42:43,371 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_92 Int) (|v_ULTIMATE.start_main_~i~0#1_47| Int) (|v_ULTIMATE.start_main_~j~0#1_66| Int) (v_ArrVal_94 Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_47|)) (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_92) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_47| 4)) v_ArrVal_94)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_66| 4))) (<= (+ (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset| (- 4))) 1) (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset|)))) (not (<= |c_ULTIMATE.start_main_~value~0#1| v_ArrVal_92)) (not (< 0 |v_ULTIMATE.start_main_~j~0#1_66|)) (not (<= |v_ULTIMATE.start_main_~j~0#1_66| 1)))) is different from false [2022-07-22 01:42:44,150 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_92 Int) (|v_ULTIMATE.start_main_~i~0#1_47| Int) (|v_ULTIMATE.start_main_~j~0#1_66| Int) (v_ArrVal_94 Int)) (or (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4) v_ArrVal_92) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_47| 4)) v_ArrVal_94)) (.cse1 (* |v_ULTIMATE.start_main_~j~0#1_66| 4))) (<= (+ (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset| (- 4))) 1) (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset|)))) (not (<= (+ 2 |c_ULTIMATE.start_main_~i~0#1|) |v_ULTIMATE.start_main_~i~0#1_47|)) (not (<= |c_ULTIMATE.start_main_~value~0#1| v_ArrVal_92)) (not (< 0 |v_ULTIMATE.start_main_~j~0#1_66|)) (not (<= |v_ULTIMATE.start_main_~j~0#1_66| 1)))) is different from false [2022-07-22 01:42:44,162 INFO L390 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 66 treesize of output 62 [2022-07-22 01:42:44,173 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-07-22 01:42:44,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47976 treesize of output 44648