./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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-crafted/4BitCounterPointer.c -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 0233d496bfaf5cb1311bfa260a57f41458184795 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 13:54:45,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 13:54:45,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 13:54:45,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 13:54:45,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 13:54:45,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 13:54:45,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 13:54:45,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 13:54:45,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 13:54:45,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 13:54:45,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 13:54:45,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 13:54:45,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 13:54:45,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 13:54:45,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 13:54:45,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 13:54:45,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 13:54:45,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 13:54:45,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 13:54:45,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 13:54:45,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 13:54:45,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 13:54:45,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 13:54:45,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 13:54:45,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 13:54:45,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 13:54:45,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 13:54:45,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 13:54:45,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 13:54:45,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 13:54:45,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 13:54:45,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 13:54:45,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 13:54:45,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 13:54:45,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 13:54:45,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 13:54:45,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 13:54:45,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 13:54:45,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 13:54:45,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 13:54:45,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 13:54:45,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 13:54:45,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 13:54:45,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 13:54:45,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 13:54:45,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 13:54:45,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 13:54:45,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 13:54:45,326 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 13:54:45,327 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 13:54:45,327 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 13:54:45,327 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 13:54:45,328 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 13:54:45,328 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 13:54:45,328 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 13:54:45,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 13:54:45,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 13:54:45,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 13:54:45,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 13:54:45,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 13:54:45,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 13:54:45,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 13:54:45,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 13:54:45,330 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 13:54:45,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 13:54:45,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 13:54:45,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 13:54:45,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 13:54:45,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 13:54:45,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 13:54:45,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 13:54:45,333 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 13:54:45,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0233d496bfaf5cb1311bfa260a57f41458184795 [2021-08-27 13:54:45,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 13:54:45,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 13:54:45,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 13:54:45,730 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 13:54:45,733 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 13:54:45,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-08-27 13:54:45,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8beb2f800/6f5d0d6236df478191cd7c02ae08484e/FLAG9b25734d1 [2021-08-27 13:54:46,210 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 13:54:46,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-08-27 13:54:46,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8beb2f800/6f5d0d6236df478191cd7c02ae08484e/FLAG9b25734d1 [2021-08-27 13:54:46,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8beb2f800/6f5d0d6236df478191cd7c02ae08484e [2021-08-27 13:54:46,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 13:54:46,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 13:54:46,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 13:54:46,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 13:54:46,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 13:54:46,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2bde3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46, skipping insertion in model container [2021-08-27 13:54:46,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 13:54:46,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 13:54:46,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:54:46,809 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 13:54:46,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:54:46,842 INFO L208 MainTranslator]: Completed translation [2021-08-27 13:54:46,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46 WrapperNode [2021-08-27 13:54:46,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 13:54:46,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 13:54:46,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 13:54:46,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 13:54:46,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 13:54:46,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 13:54:46,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 13:54:46,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 13:54:46,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 13:54:46,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 13:54:46,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 13:54:46,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 13:54:46,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (1/1) ... [2021-08-27 13:54:46,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:46,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:46,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:46,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 13:54:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 13:54:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 13:54:46,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 13:54:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 13:54:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 13:54:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 13:54:47,295 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 13:54:47,295 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 13:54:47,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:47 BoogieIcfgContainer [2021-08-27 13:54:47,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 13:54:47,298 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 13:54:47,298 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 13:54:47,300 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 13:54:47,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:47,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 01:54:46" (1/3) ... [2021-08-27 13:54:47,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14cb62bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:54:47, skipping insertion in model container [2021-08-27 13:54:47,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:47,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:46" (2/3) ... [2021-08-27 13:54:47,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14cb62bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:54:47, skipping insertion in model container [2021-08-27 13:54:47,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:47,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:47" (3/3) ... [2021-08-27 13:54:47,304 INFO L389 chiAutomizerObserver]: Analyzing ICFG 4BitCounterPointer.c [2021-08-27 13:54:47,361 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 13:54:47,361 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 13:54:47,362 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 13:54:47,362 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 13:54:47,362 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 13:54:47,362 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 13:54:47,362 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 13:54:47,362 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 13:54:47,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:47,387 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:54:47,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:47,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:47,393 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 13:54:47,393 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 13:54:47,393 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 13:54:47,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:47,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:54:47,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:47,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:47,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 13:54:47,396 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 13:54:47,401 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 6#L24-2true [2021-08-27 13:54:47,402 INFO L793 eck$LassoCheckResult]: Loop: 6#L24-2true call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 9#L15-1true assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 3#L16true assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 6#L24-2true [2021-08-27 13:54:47,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:47,407 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 13:54:47,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:47,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672033969] [2021-08-27 13:54:47,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:47,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,580 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:47,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-08-27 13:54:47,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:47,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143185980] [2021-08-27 13:54:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:47,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,684 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,695 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:47,712 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-08-27 13:54:47,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:47,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068287236] [2021-08-27 13:54:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:47,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,733 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:47,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:49,309 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:49,310 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:49,310 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:49,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:49,310 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:49,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:49,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:49,311 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:49,311 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration1_Lasso [2021-08-27 13:54:49,311 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:49,311 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:49,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:49,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:50,431 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:50,434 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:50,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 13:54:50,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:50,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:50,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:50,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-27 13:54:50,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 13:54:50,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:50,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:50,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:50,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 13:54:50,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:50,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:50,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:50,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,618 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 13:54:50,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:50,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:50,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:50,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:50,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 13:54:50,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:50,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:50,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,705 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 [2021-08-27 13:54:50,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 13:54:50,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:50,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:50,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-08-27 13:54:50,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 13:54:50,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:50,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:50,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:50,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:50,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,771 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 13:54:50,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:50,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:50,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:50,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,891 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 13:54:50,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:50,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:50,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:50,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,948 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 13:54:50,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:50,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:50,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:50,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:50,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:50,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:50,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:50,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:50,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:50,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:50,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:50,992 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:50,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 13:54:51,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:51,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,082 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 13:54:51,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:51,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,139 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 13:54:51,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-08-27 13:54:51,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,186 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 13:54:51,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:51,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,220 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 13:54:51,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:51,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,253 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 13:54:51,255 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-08-27 13:54:51,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,287 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 13:54:51,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:51,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,341 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 13:54:51,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:51,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,401 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 13:54:51,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:51,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:51,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,469 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:51,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:51,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:51,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:51,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:51,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:51,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:51,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 13:54:51,508 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:54:51,525 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-27 13:54:51,525 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-08-27 13:54:51,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:51,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:51,549 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:51,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:54:51,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 13:54:51,622 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 13:54:51,622 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:54:51,623 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1 + 1 Supporting invariants [] [2021-08-27 13:54:51,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-08-27 13:54:51,812 INFO L297 tatePredicateManager]: 40 out of 40 supporting invariants were superfluous and have been removed [2021-08-27 13:54:51,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:51,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:54:51,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:51,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 13:54:51,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:51,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:51,944 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:54:51,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:51,985 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 8 states. [2021-08-27 13:54:51,986 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 [2021-08-27 13:54:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:51,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-08-27 13:54:51,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2021-08-27 13:54:51,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:51,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2021-08-27 13:54:51,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:51,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2021-08-27 13:54:51,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:51,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-08-27 13:54:51,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:54:51,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 13 states and 18 transitions. [2021-08-27 13:54:51,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-27 13:54:51,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 13:54:51,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-08-27 13:54:51,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:51,996 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-08-27 13:54:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-08-27 13:54:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-08-27 13:54:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-08-27 13:54:52,013 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-08-27 13:54:52,013 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-08-27 13:54:52,013 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 13:54:52,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-08-27 13:54:52,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:54:52,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:52,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:52,014 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 13:54:52,014 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 13:54:52,014 INFO L791 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 248#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 253#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 252#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 243#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-08-27 13:54:52,015 INFO L793 eck$LassoCheckResult]: Loop: 244#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 249#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 250#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 255#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-08-27 13:54:52,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,015 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-08-27 13:54:52,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190350827] [2021-08-27 13:54:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:52,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:52,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:54:52,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190350827] [2021-08-27 13:54:52,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190350827] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 13:54:52,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 13:54:52,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 13:54:52,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376138061] [2021-08-27 13:54:52,178 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 13:54:52,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 1 times [2021-08-27 13:54:52,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025398973] [2021-08-27 13:54:52,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,185 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:52,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:54:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 13:54:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 13:54:52,378 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:52,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:54:52,415 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-08-27 13:54:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 13:54:52,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-08-27 13:54:52,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:54:52,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 19 transitions. [2021-08-27 13:54:52,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-08-27 13:54:52,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 13:54:52,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-08-27 13:54:52,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:52,418 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-08-27 13:54:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-08-27 13:54:52,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-08-27 13:54:52,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-08-27 13:54:52,420 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-08-27 13:54:52,420 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-08-27 13:54:52,420 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 13:54:52,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-08-27 13:54:52,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 13:54:52,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:52,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:52,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-08-27 13:54:52,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 13:54:52,422 INFO L791 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 288#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 289#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 284#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 285#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 290#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 282#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-08-27 13:54:52,422 INFO L793 eck$LassoCheckResult]: Loop: 283#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 291#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 293#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 294#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-08-27 13:54:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,422 INFO L82 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 1 times [2021-08-27 13:54:52,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972473315] [2021-08-27 13:54:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,445 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,477 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:52,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 2 times [2021-08-27 13:54:52,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228264218] [2021-08-27 13:54:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,487 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:52,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1467212285, now seen corresponding path program 1 times [2021-08-27 13:54:52,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821899536] [2021-08-27 13:54:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:52,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:54:52,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821899536] [2021-08-27 13:54:52,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821899536] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:54:52,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131840526] [2021-08-27 13:54:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 13:54:52,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:52,609 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 13:54:52,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-08-27 13:54:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:52,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 13:54:52,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:52,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-08-27 13:54:52,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-08-27 13:54:52,785 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-08-27 13:54:52,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-08-27 13:54:52,889 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-08-27 13:54:52,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2021-08-27 13:54:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-27 13:54:52,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131840526] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:54:52,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 13:54:52,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2021-08-27 13:54:52,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653022199] [2021-08-27 13:54:53,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:54:53,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 13:54:53,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-08-27 13:54:53,062 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:54:53,175 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-08-27 13:54:53,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 13:54:53,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-08-27 13:54:53,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:54:53,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2021-08-27 13:54:53,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-08-27 13:54:53,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-08-27 13:54:53,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2021-08-27 13:54:53,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:53,177 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-08-27 13:54:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2021-08-27 13:54:53,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-08-27 13:54:53,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-08-27 13:54:53,178 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-08-27 13:54:53,178 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-08-27 13:54:53,178 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 13:54:53,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-08-27 13:54:53,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:54:53,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:53,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:53,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-08-27 13:54:53,179 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 13:54:53,180 INFO L791 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 371#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 376#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 373#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 368#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 369#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 374#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 380#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-08-27 13:54:53,180 INFO L793 eck$LassoCheckResult]: Loop: 377#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 379#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 367#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 372#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 381#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-08-27 13:54:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,180 INFO L82 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 2 times [2021-08-27 13:54:53,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:53,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701991423] [2021-08-27 13:54:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,199 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,227 INFO L82 PathProgramCache]: Analyzing trace with hash 49698504, now seen corresponding path program 1 times [2021-08-27 13:54:53,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:53,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677246847] [2021-08-27 13:54:53,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,237 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1758681084, now seen corresponding path program 1 times [2021-08-27 13:54:53,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:53,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407354353] [2021-08-27 13:54:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:53,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:54:53,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407354353] [2021-08-27 13:54:53,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407354353] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:54:53,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074618435] [2021-08-27 13:54:53,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 13:54:53,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:53,385 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 13:54:53,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-08-27 13:54:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:53,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 13:54:53,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:53,483 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-27 13:54:53,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-08-27 13:54:53,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-08-27 13:54:53,617 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-08-27 13:54:53,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-08-27 13:54:53,686 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-08-27 13:54:53,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 44 [2021-08-27 13:54:54,003 INFO L354 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2021-08-27 13:54:54,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 41 [2021-08-27 13:54:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-27 13:54:54,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074618435] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:54:54,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 13:54:54,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-08-27 13:54:54,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450965202] [2021-08-27 13:54:54,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:54:54,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 13:54:54,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-08-27 13:54:54,187 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 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) [2021-08-27 13:54:58,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:54:58,834 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-08-27 13:54:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 13:54:58,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2021-08-27 13:54:58,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-08-27 13:54:58,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 25 transitions. [2021-08-27 13:54:58,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-27 13:54:58,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-08-27 13:54:58,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2021-08-27 13:54:58,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:58,837 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-08-27 13:54:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2021-08-27 13:54:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2021-08-27 13:54:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-08-27 13:54:58,838 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-08-27 13:54:58,838 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-08-27 13:54:58,838 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 13:54:58,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-08-27 13:54:58,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:54:58,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:58,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:58,839 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-08-27 13:54:58,839 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 13:54:58,840 INFO L791 eck$LassoCheckResult]: Stem: 472#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 473#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 478#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 475#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 470#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 471#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 476#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 482#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-08-27 13:54:58,840 INFO L793 eck$LassoCheckResult]: Loop: 479#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 481#L24 assume !(0 == main_#t~mem7);havoc main_#t~mem7;call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(1, main_~x3~0.base, main_~x3~0.offset, 4); 469#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 474#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 483#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-08-27 13:54:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:58,840 INFO L82 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 3 times [2021-08-27 13:54:58,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:58,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738245930] [2021-08-27 13:54:58,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:58,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,851 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:58,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:58,863 INFO L82 PathProgramCache]: Analyzing trace with hash 49758086, now seen corresponding path program 1 times [2021-08-27 13:54:58,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:58,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752470657] [2021-08-27 13:54:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:58,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:58,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:58,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:54:58,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752470657] [2021-08-27 13:54:58,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752470657] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 13:54:58,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 13:54:58,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 13:54:58,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111485913] [2021-08-27 13:54:58,882 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 13:54:58,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:54:58,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 13:54:58,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 13:54:58,883 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:54:58,905 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-08-27 13:54:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 13:54:58,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-08-27 13:54:58,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:54:58,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 19 transitions. [2021-08-27 13:54:58,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-08-27 13:54:58,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-08-27 13:54:58,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2021-08-27 13:54:58,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:58,907 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-27 13:54:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2021-08-27 13:54:58,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-27 13:54:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-08-27 13:54:58,909 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-27 13:54:58,909 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-27 13:54:58,909 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 13:54:58,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-08-27 13:54:58,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:54:58,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:58,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:58,910 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-08-27 13:54:58,910 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2021-08-27 13:54:58,911 INFO L791 eck$LassoCheckResult]: Stem: 515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 516#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 521#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 518#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 513#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 514#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 519#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 525#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-08-27 13:54:58,911 INFO L793 eck$LassoCheckResult]: Loop: 522#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 523#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 526#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 511#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 512#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 517#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 520#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-08-27 13:54:58,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:58,911 INFO L82 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 4 times [2021-08-27 13:54:58,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:58,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287301448] [2021-08-27 13:54:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:58,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,921 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:58,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1770012235, now seen corresponding path program 1 times [2021-08-27 13:54:58,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:58,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800746567] [2021-08-27 13:54:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:58,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,939 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:58,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:58,946 INFO L82 PathProgramCache]: Analyzing trace with hash -161041423, now seen corresponding path program 2 times [2021-08-27 13:54:58,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:58,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106949283] [2021-08-27 13:54:58,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:58,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,957 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:58,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:00,184 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:00,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:00,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:00,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:00,184 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:00,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:00,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:00,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:00,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration6_Lasso [2021-08-27 13:55:00,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:00,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:00,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:00,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:00,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:00,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:00,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:00,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:00,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:00,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:01,033 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:01,033 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:01,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,036 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 13:55:01,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,067 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 13:55:01,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,107 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 13:55:01,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-08-27 13:55:01,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,157 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 13:55:01,159 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 [2021-08-27 13:55:01,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,207 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 13:55:01,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,241 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-27 13:55:01,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-08-27 13:55:01,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,281 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-27 13:55:01,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,326 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-27 13:55:01,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-08-27 13:55:01,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,379 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-27 13:55:01,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-08-27 13:55:01,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,424 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-27 13:55:01,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-08-27 13:55:01,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,453 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-27 13:55:01,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-08-27 13:55:01,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,489 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-27 13:55:01,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:01,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,518 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-27 13:55:01,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:01,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:01,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:01,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:01,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:01,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:01,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:01,533 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:01,550 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-08-27 13:55:01,550 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-08-27 13:55:01,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:01,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:01,554 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:01,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-27 13:55:01,555 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:01,563 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-08-27 13:55:01,563 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:01,564 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 + 1 Supporting invariants [3*ULTIMATE.start_main_#t~mem6 - 2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 >= 0] [2021-08-27 13:55:01,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,707 INFO L297 tatePredicateManager]: 37 out of 38 supporting invariants were superfluous and have been removed [2021-08-27 13:55:01,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:01,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:01,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 30 conjunts are in the unsatisfiable core [2021-08-27 13:55:01,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:01,824 INFO L354 Elim1Store]: treesize reduction 157, result has 12.3 percent of original size [2021-08-27 13:55:01,824 INFO L388 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 3 case distinctions, treesize of input 143 treesize of output 48 [2021-08-27 13:55:01,839 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-27 13:55:01,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2021-08-27 13:55:02,052 INFO L354 Elim1Store]: treesize reduction 96, result has 19.3 percent of original size [2021-08-27 13:55:02,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 48 treesize of output 57 [2021-08-27 13:55:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:02,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 13:55:02,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:02,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-08-27 13:55:02,476 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-08-27 13:55:02,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-08-27 13:55:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:02,587 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 4 loop predicates [2021-08-27 13:55:02,587 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:02,710 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 26 transitions. Complement of second has 7 states. [2021-08-27 13:55:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 0 non-accepting loop states 2 accepting loop states [2021-08-27 13:55:02,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:02,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2021-08-27 13:55:02,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 8 letters. Loop has 7 letters. [2021-08-27 13:55:02,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:02,712 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:55:02,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:02,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 13:55:02,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:02,803 INFO L354 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2021-08-27 13:55:02,803 INFO L388 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 3 case distinctions, treesize of input 123 treesize of output 29 [2021-08-27 13:55:02,951 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-08-27 13:55:02,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2021-08-27 13:55:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-08-27 13:55:03,257 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-08-27 13:55:03,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-08-27 13:55:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:03,344 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 4 loop predicates [2021-08-27 13:55:03,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,588 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 17 states. [2021-08-27 13:55:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 6 stem states 4 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2021-08-27 13:55:03,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 7 letters. [2021-08-27 13:55:03,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 15 letters. Loop has 7 letters. [2021-08-27 13:55:03,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 14 letters. [2021-08-27 13:55:03,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:03,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-08-27 13:55:03,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:55:03,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 30 states and 36 transitions. [2021-08-27 13:55:03,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-08-27 13:55:03,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-08-27 13:55:03,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2021-08-27 13:55:03,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:03,593 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-08-27 13:55:03,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2021-08-27 13:55:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-08-27 13:55:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:03,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-08-27 13:55:03,595 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-08-27 13:55:03,595 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-08-27 13:55:03,595 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-27 13:55:03,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-08-27 13:55:03,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:55:03,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:03,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:03,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-08-27 13:55:03,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-08-27 13:55:03,596 INFO L791 eck$LassoCheckResult]: Stem: 918#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 919#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 920#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 921#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 916#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 917#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 922#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 935#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 934#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-08-27 13:55:03,596 INFO L793 eck$LassoCheckResult]: Loop: 926#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 925#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 923#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 914#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 915#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 937#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 936#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 924#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-08-27 13:55:03,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:03,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1269321585, now seen corresponding path program 1 times [2021-08-27 13:55:03,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:03,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447995296] [2021-08-27 13:55:03,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:03,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:55:03,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447995296] [2021-08-27 13:55:03,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447995296] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:03,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727078201] [2021-08-27 13:55:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:03,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 13:55:03,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:03,705 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 13:55:03,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-08-27 13:55:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:03,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 28 conjunts are in the unsatisfiable core [2021-08-27 13:55:03,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:03,907 INFO L354 Elim1Store]: treesize reduction 133, result has 14.2 percent of original size [2021-08-27 13:55:03,907 INFO L388 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 3 case distinctions, treesize of input 135 treesize of output 40 [2021-08-27 13:55:03,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2021-08-27 13:55:04,082 INFO L354 Elim1Store]: treesize reduction 100, result has 27.5 percent of original size [2021-08-27 13:55:04,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 61 [2021-08-27 13:55:04,350 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-08-27 13:55:04,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 42 [2021-08-27 13:55:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:04,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727078201] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:04,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 13:55:04,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-27 13:55:04,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362122530] [2021-08-27 13:55:04,364 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 13:55:04,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 1 times [2021-08-27 13:55:04,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:04,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891915248] [2021-08-27 13:55:04,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:04,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:04,373 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:04,378 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:04,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:55:04,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 13:55:04,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-08-27 13:55:04,671 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:55:04,973 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-08-27 13:55:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 13:55:04,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2021-08-27 13:55:04,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:55:04,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 33 transitions. [2021-08-27 13:55:04,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-08-27 13:55:04,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-08-27 13:55:04,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2021-08-27 13:55:04,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:04,974 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-08-27 13:55:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2021-08-27 13:55:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2021-08-27 13:55:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-08-27 13:55:04,977 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-08-27 13:55:04,977 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-08-27 13:55:04,977 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-27 13:55:04,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2021-08-27 13:55:04,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 13:55:04,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:04,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:04,978 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-08-27 13:55:04,978 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-08-27 13:55:04,978 INFO L791 eck$LassoCheckResult]: Stem: 1019#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1020#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1021#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1022#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1017#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1018#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1036#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1033#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1027#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1023#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1024#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1026#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1038#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1035#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1032#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1028#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-08-27 13:55:04,978 INFO L793 eck$LassoCheckResult]: Loop: 1029#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1030#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1025#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1015#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1016#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1037#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1034#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1031#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-08-27 13:55:04,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:04,978 INFO L82 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 1 times [2021-08-27 13:55:04,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:04,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177657146] [2021-08-27 13:55:04,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:04,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:04,991 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:05,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 2 times [2021-08-27 13:55:05,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:05,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459784561] [2021-08-27 13:55:05,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,013 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:05,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:05,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:05,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1710122080, now seen corresponding path program 1 times [2021-08-27 13:55:05,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:05,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070846983] [2021-08-27 13:55:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-08-27 13:55:05,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:55:05,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070846983] [2021-08-27 13:55:05,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070846983] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:05,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755462546] [2021-08-27 13:55:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:05,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 13:55:05,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:05,137 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 13:55:05,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-08-27 13:55:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:05,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 13:55:05,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:05,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-08-27 13:55:05,488 INFO L388 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 11 treesize of output 7 [2021-08-27 13:55:05,529 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-08-27 13:55:05,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-08-27 13:55:05,606 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-08-27 13:55:05,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 40 [2021-08-27 13:55:06,065 INFO L354 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2021-08-27 13:55:06,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 55 [2021-08-27 13:55:06,169 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 13:55:06,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2021-08-27 13:55:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-08-27 13:55:06,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755462546] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:55:06,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 13:55:06,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-08-27 13:55:06,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768736376] [2021-08-27 13:55:06,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:55:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 13:55:06,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-27 13:55:06,479 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:07,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:55:07,292 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-08-27 13:55:07,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 13:55:07,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2021-08-27 13:55:07,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-08-27 13:55:07,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 38 transitions. [2021-08-27 13:55:07,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-08-27 13:55:07,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-08-27 13:55:07,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-08-27 13:55:07,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:55:07,294 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-08-27 13:55:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-08-27 13:55:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-08-27 13:55:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-08-27 13:55:07,296 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-08-27 13:55:07,296 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-08-27 13:55:07,296 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-27 13:55:07,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2021-08-27 13:55:07,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-08-27 13:55:07,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:55:07,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:55:07,297 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-08-27 13:55:07,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 2, 2, 1, 1, 1] [2021-08-27 13:55:07,297 INFO L791 eck$LassoCheckResult]: Stem: 1172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1173#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1174#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1175#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1170#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1171#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1176#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1196#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1195#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1181#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1193#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1191#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1190#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1188#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1185#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1180#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-08-27 13:55:07,298 INFO L793 eck$LassoCheckResult]: Loop: 1182#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1183#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1177#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1168#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1169#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1198#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1197#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1178#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1179#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1194#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1192#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1187#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1189#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1186#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1184#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-08-27 13:55:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,298 INFO L82 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 2 times [2021-08-27 13:55:07,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146243719] [2021-08-27 13:55:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,320 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,334 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2047759866, now seen corresponding path program 1 times [2021-08-27 13:55:07,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071300457] [2021-08-27 13:55:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,343 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:07,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:07,352 INFO L82 PathProgramCache]: Analyzing trace with hash 462437174, now seen corresponding path program 2 times [2021-08-27 13:55:07,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:55:07,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115046757] [2021-08-27 13:55:07,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:55:07,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:55:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,370 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:55:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:55:07,405 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:55:10,484 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:55:10,484 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:55:10,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:55:10,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:55:10,484 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:55:10,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:10,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:55:10,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:55:10,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration9_Lasso [2021-08-27 13:55:10,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:55:10,485 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:55:10,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:10,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:11,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:11,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:55:11,546 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:55:11,546 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:55:11,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,547 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-27 13:55:11,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:11,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:11,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:11,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-08-27 13:55:11,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,579 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-27 13:55:11,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:11,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:11,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:11,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:11,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,605 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-27 13:55:11,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:11,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:55:11,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:11,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-08-27 13:55:11,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,635 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-27 13:55:11,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:11,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,662 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-08-27 13:55:11,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-08-27 13:55:11,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,710 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-08-27 13:55:11,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-08-27 13:55:11,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,740 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-08-27 13:55:11,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:11,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,769 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-08-27 13:55:11,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:11,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,833 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-08-27 13:55:11,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-08-27 13:55:11,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,877 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-08-27 13:55:11,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-08-27 13:55:11,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,906 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-27 13:55:11,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-08-27 13:55:11,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,937 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-08-27 13:55:11,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:11,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:11,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:11,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:11,987 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:11,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-08-27 13:55:11,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:11,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:11,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:11,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:11,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:11,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:11,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:11,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:12,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-08-27 13:55:12,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,015 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:12,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-08-27 13:55:12,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:12,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:12,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:12,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:12,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:12,025 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:12,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:12,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:12,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-08-27 13:55:12,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,045 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:12,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-08-27 13:55:12,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:12,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:12,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:12,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:12,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:12,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:12,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:12,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:12,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-08-27 13:55:12,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,074 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:12,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-08-27 13:55:12,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:12,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:12,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:12,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:12,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:12,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:12,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:12,088 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:12,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-08-27 13:55:12,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,104 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:12,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-08-27 13:55:12,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:12,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:55:12,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:12,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:12,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:55:12,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:12,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:55:12,129 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:55:12,135 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-08-27 13:55:12,135 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-08-27 13:55:12,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:12,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:12,136 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:12,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-08-27 13:55:12,138 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:55:12,145 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 13:55:12,145 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:55:12,145 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7) = -2*ULTIMATE.start_main_#t~mem7 + 1 Supporting invariants [] [2021-08-27 13:55:12,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,292 INFO L297 tatePredicateManager]: 42 out of 42 supporting invariants were superfluous and have been removed [2021-08-27 13:55:12,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:55:12,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:12,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:55:12,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:55:12,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 13:55:12,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:55:12,427 INFO L388 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 11 treesize of output 7 [2021-08-27 13:55:12,492 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-08-27 13:55:12,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-08-27 13:55:12,613 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-08-27 13:55:12,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 21 [2021-08-27 13:55:12,680 INFO L354 Elim1Store]: treesize reduction 67, result has 32.3 percent of original size [2021-08-27 13:55:12,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 48 [2021-08-27 13:55:12,903 INFO L354 Elim1Store]: treesize reduction 66, result has 33.3 percent of original size [2021-08-27 13:55:12,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-08-27 13:55:13,060 INFO L354 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2021-08-27 13:55:13,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 49 [2021-08-27 13:55:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:55:13,143 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-08-27 13:55:13,143 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:13,341 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 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) Result 61 states and 70 transitions. Complement of second has 23 states. [2021-08-27 13:55:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2021-08-27 13:55:13,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:55:13,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 33 transitions. [2021-08-27 13:55:13,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 15 letters. [2021-08-27 13:55:13,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:13,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 31 letters. Loop has 15 letters. [2021-08-27 13:55:13,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:13,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 30 letters. [2021-08-27 13:55:13,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:55:13,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 70 transitions. [2021-08-27 13:55:13,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:55:13,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2021-08-27 13:55:13,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 13:55:13,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 13:55:13,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 13:55:13,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 13:55:13,344 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:13,344 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:13,344 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 13:55:13,344 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-27 13:55:13,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 13:55:13,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 13:55:13,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 13:55:13,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 01:55:13 BoogieIcfgContainer [2021-08-27 13:55:13,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 13:55:13,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 13:55:13,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 13:55:13,349 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 13:55:13,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:47" (3/4) ... [2021-08-27 13:55:13,352 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 13:55:13,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 13:55:13,353 INFO L168 Benchmark]: Toolchain (without parser) took 26707.16 ms. Allocated memory was 54.5 MB in the beginning and 211.8 MB in the end (delta: 157.3 MB). Free memory was 32.4 MB in the beginning and 54.9 MB in the end (delta: -22.5 MB). Peak memory consumption was 134.7 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:13,353 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:13,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.98 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.1 MB in the beginning and 51.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:13,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.97 ms. Allocated memory is still 67.1 MB. Free memory was 51.7 MB in the beginning and 50.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:13,353 INFO L168 Benchmark]: Boogie Preprocessor took 19.27 ms. Allocated memory is still 67.1 MB. Free memory was 50.2 MB in the beginning and 48.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:13,354 INFO L168 Benchmark]: RCFGBuilder took 396.57 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 50.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:13,354 INFO L168 Benchmark]: BuchiAutomizer took 26050.92 ms. Allocated memory was 67.1 MB in the beginning and 211.8 MB in the end (delta: 144.7 MB). Free memory was 50.4 MB in the beginning and 54.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 138.6 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:13,354 INFO L168 Benchmark]: Witness Printer took 2.88 ms. Allocated memory is still 211.8 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:13,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 194.98 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.1 MB in the beginning and 51.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.97 ms. Allocated memory is still 67.1 MB. Free memory was 51.7 MB in the beginning and 50.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.27 ms. Allocated memory is still 67.1 MB. Free memory was 50.2 MB in the beginning and 48.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 396.57 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 50.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 26050.92 ms. Allocated memory was 67.1 MB in the beginning and 211.8 MB in the end (delta: 144.7 MB). Free memory was 50.4 MB in the beginning and 54.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 138.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.88 ms. Allocated memory is still 211.8 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (6 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 1 + -2 * unknown-#memory_int-unknown[x0][x0] and consists of 5 locations. One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x1][x1] + 1 and consists of 12 locations. One deterministic module has affine ranking function -2 * aux-x2-aux + 1 and consists of 13 locations. 6 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 25.9s and 10 iterations. TraceHistogramMax:4. Analysis of lassos took 16.8s. Construction of modules took 2.0s. Büchi inclusion checks took 6.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 20.5ms AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 8. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 12/22 HoareTripleCheckerStatistics: 39 SDtfs, 90 SDslu, 45 SDs, 0 SdLazy, 464 SolverSat, 124 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 2061.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital1233 mio100 ax100 hnf100 lsp98 ukn33 mio100 lsp38 div100 bol100 ite100 ukn100 eq187 hnf88 smp96 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 13:55:13,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2021-08-27 13:55:13,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:13,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:13,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-08-27 13:55:14,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...