./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5964f352b4fb43ac691f9b95d86e187c9f5cb80a14ac63e8c25af4413cd385ce --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 19:52:45,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 19:52:45,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 19:52:46,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 19:52:46,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 19:52:46,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 19:52:46,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 19:52:46,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 19:52:46,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 19:52:46,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 19:52:46,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 19:52:46,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 19:52:46,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 19:52:46,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 19:52:46,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 19:52:46,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 19:52:46,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 19:52:46,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 19:52:46,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 19:52:46,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 19:52:46,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 19:52:46,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 19:52:46,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 19:52:46,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 19:52:46,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 19:52:46,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 19:52:46,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 19:52:46,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 19:52:46,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 19:52:46,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 19:52:46,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 19:52:46,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 19:52:46,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 19:52:46,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 19:52:46,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 19:52:46,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 19:52:46,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 19:52:46,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 19:52:46,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 19:52:46,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 19:52:46,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 19:52:46,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-22 19:52:46,109 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 19:52:46,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 19:52:46,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 19:52:46,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 19:52:46,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 19:52:46,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 19:52:46,112 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 19:52:46,112 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 19:52:46,112 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 19:52:46,113 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 19:52:46,113 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 19:52:46,113 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 19:52:46,113 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 19:52:46,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 19:52:46,114 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 19:52:46,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 19:52:46,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 19:52:46,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 19:52:46,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 19:52:46,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 19:52:46,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 19:52:46,115 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 19:52:46,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 19:52:46,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 19:52:46,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 19:52:46,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 19:52:46,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 19:52:46,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 19:52:46,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 19:52:46,117 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 19:52:46,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5964f352b4fb43ac691f9b95d86e187c9f5cb80a14ac63e8c25af4413cd385ce [2021-12-22 19:52:46,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 19:52:46,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 19:52:46,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 19:52:46,357 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 19:52:46,358 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 19:52:46,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-22 19:52:46,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61808aa29/4f65c256eeb64005b3c71dbb0b3bd814/FLAG1049338b7 [2021-12-22 19:52:46,813 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 19:52:46,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-22 19:52:46,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61808aa29/4f65c256eeb64005b3c71dbb0b3bd814/FLAG1049338b7 [2021-12-22 19:52:46,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61808aa29/4f65c256eeb64005b3c71dbb0b3bd814 [2021-12-22 19:52:46,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 19:52:46,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 19:52:46,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 19:52:46,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 19:52:46,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 19:52:46,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:52:46" (1/1) ... [2021-12-22 19:52:46,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44891f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:46, skipping insertion in model container [2021-12-22 19:52:46,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:52:46" (1/1) ... [2021-12-22 19:52:46,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 19:52:46,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 19:52:47,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:52:47,143 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 19:52:47,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 19:52:47,199 INFO L208 MainTranslator]: Completed translation [2021-12-22 19:52:47,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47 WrapperNode [2021-12-22 19:52:47,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 19:52:47,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 19:52:47,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 19:52:47,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 19:52:47,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,238 INFO L137 Inliner]: procedures = 110, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-12-22 19:52:47,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 19:52:47,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 19:52:47,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 19:52:47,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 19:52:47,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 19:52:47,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 19:52:47,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 19:52:47,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 19:52:47,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (1/1) ... [2021-12-22 19:52:47,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:47,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:47,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:47,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-22 19:52:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 19:52:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 19:52:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 19:52:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 19:52:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 19:52:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 19:52:47,422 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 19:52:47,423 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 19:52:47,504 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 19:52:47,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 19:52:47,508 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 19:52:47,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:52:47 BoogieIcfgContainer [2021-12-22 19:52:47,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 19:52:47,510 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 19:52:47,511 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 19:52:47,526 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 19:52:47,526 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:52:47,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 07:52:46" (1/3) ... [2021-12-22 19:52:47,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35dc24fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:52:47, skipping insertion in model container [2021-12-22 19:52:47,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:52:47,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:52:47" (2/3) ... [2021-12-22 19:52:47,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35dc24fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 07:52:47, skipping insertion in model container [2021-12-22 19:52:47,528 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 19:52:47,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:52:47" (3/3) ... [2021-12-22 19:52:47,529 INFO L388 chiAutomizerObserver]: Analyzing ICFG Urban-alloca.i [2021-12-22 19:52:47,567 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 19:52:47,567 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 19:52:47,567 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 19:52:47,567 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 19:52:47,567 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 19:52:47,567 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 19:52:47,567 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 19:52:47,568 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 19:52:47,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) [2021-12-22 19:52:47,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 19:52:47,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:47,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:47,597 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:52:47,598 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:47,598 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 19:52:47,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) [2021-12-22 19:52:47,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 19:52:47,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:47,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:47,601 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-22 19:52:47,601 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:47,605 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 8#L559-2true [2021-12-22 19:52:47,606 INFO L793 eck$LassoCheckResult]: Loop: 8#L559-2true call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 12#L550-1true assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 10#L550-3true assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 9#L551true assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7#L559true assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 8#L559-2true [2021-12-22 19:52:47,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:47,616 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-22 19:52:47,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:47,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271757616] [2021-12-22 19:52:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:47,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:47,706 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:47,737 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 1 times [2021-12-22 19:52:47,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:47,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569668596] [2021-12-22 19:52:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:47,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:47,775 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:47,793 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:47,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:47,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 1 times [2021-12-22 19:52:47,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:47,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924709561] [2021-12-22 19:52:47,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:47,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:47,811 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:47,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:48,210 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:52:48,221 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:52:48,221 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:52:48,221 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:52:48,221 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:52:48,221 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:48,221 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:52:48,221 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:52:48,222 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration1_Lasso [2021-12-22 19:52:48,222 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:52:48,222 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:52:48,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:48,758 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:52:48,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:52:48,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:48,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:48,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:48,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:48,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:48,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:48,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:48,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:48,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-22 19:52:48,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:48,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:48,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:48,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-22 19:52:48,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:48,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:48,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:48,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-22 19:52:48,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:48,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:48,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:48,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:48,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:48,874 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:48,874 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:48,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:48,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:48,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:48,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:48,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:48,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-22 19:52:48,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:48,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:48,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:48,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:48,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:48,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:48,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:48,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:48,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:48,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:48,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:48,977 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:48,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-22 19:52:48,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:48,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:48,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:48,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:48,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:48,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:48,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:48,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:48,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:49,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:49,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:49,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:49,009 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:49,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-22 19:52:49,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:49,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:49,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:49,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:49,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:49,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:49,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:49,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:49,031 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:52:49,036 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-22 19:52:49,036 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-22 19:52:49,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:49,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:49,053 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:49,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-22 19:52:49,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:52:49,104 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-22 19:52:49,104 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:52:49,104 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 Supporting invariants [] [2021-12-22 19:52:49,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:49,186 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-22 19:52:49,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:49,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:49,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:49,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-22 19:52:49,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:49,408 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-12-22 19:52:49,409 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:49,464 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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). Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 58 transitions. Complement of second has 14 states. [2021-12-22 19:52:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:49,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2021-12-22 19:52:49,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 2 letters. Loop has 5 letters. [2021-12-22 19:52:49,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:49,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-22 19:52:49,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:49,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 2 letters. Loop has 10 letters. [2021-12-22 19:52:49,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:49,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 58 transitions. [2021-12-22 19:52:49,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 19:52:49,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 21 states and 31 transitions. [2021-12-22 19:52:49,476 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-22 19:52:49,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-22 19:52:49,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 31 transitions. [2021-12-22 19:52:49,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:49,477 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 31 transitions. [2021-12-22 19:52:49,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 31 transitions. [2021-12-22 19:52:49,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-12-22 19:52:49,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-12-22 19:52:49,492 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-22 19:52:49,493 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-22 19:52:49,493 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 19:52:49,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2021-12-22 19:52:49,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 19:52:49,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:49,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:49,494 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-22 19:52:49,494 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:49,494 INFO L791 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 178#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 174#L550-1 assume !main_#t~short6#1; 180#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 169#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 170#L552 [2021-12-22 19:52:49,494 INFO L793 eck$LassoCheckResult]: Loop: 170#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 166#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 172#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 175#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 176#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 170#L552 [2021-12-22 19:52:49,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:49,495 INFO L85 PathProgramCache]: Analyzing trace with hash 889571371, now seen corresponding path program 1 times [2021-12-22 19:52:49,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:49,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026183912] [2021-12-22 19:52:49,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:49,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:49,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:52:49,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026183912] [2021-12-22 19:52:49,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026183912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 19:52:49,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 19:52:49,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 19:52:49,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658686191] [2021-12-22 19:52:49,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 19:52:49,525 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-22 19:52:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 1 times [2021-12-22 19:52:49,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:49,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998758113] [2021-12-22 19:52:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:49,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,534 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:49,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:52:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 19:52:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 19:52:49,659 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:52:49,667 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-12-22 19:52:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 19:52:49,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-12-22 19:52:49,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 19:52:49,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2021-12-22 19:52:49,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-22 19:52:49,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-22 19:52:49,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-12-22 19:52:49,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:49,669 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-22 19:52:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-12-22 19:52:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-22 19:52:49,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:49,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-12-22 19:52:49,671 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-22 19:52:49,671 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-22 19:52:49,671 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 19:52:49,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-12-22 19:52:49,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 19:52:49,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:49,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:49,672 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-22 19:52:49,672 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:49,673 INFO L791 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 223#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 220#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 225#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 224#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 215#L552 [2021-12-22 19:52:49,673 INFO L793 eck$LassoCheckResult]: Loop: 215#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 211#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 218#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 221#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 214#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 215#L552 [2021-12-22 19:52:49,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:49,673 INFO L85 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2021-12-22 19:52:49,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:49,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373171852] [2021-12-22 19:52:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:49,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,683 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:49,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 2 times [2021-12-22 19:52:49,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808490549] [2021-12-22 19:52:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:49,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,722 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,730 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:49,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -364197003, now seen corresponding path program 1 times [2021-12-22 19:52:49,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:49,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611294835] [2021-12-22 19:52:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:49,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,744 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:49,752 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:50,055 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:52:50,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:52:50,056 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:52:50,056 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:52:50,056 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:52:50,056 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,056 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:52:50,056 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:52:50,056 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration3_Lasso [2021-12-22 19:52:50,057 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:52:50,057 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:52:50,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:50,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:52:50,455 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:52:50,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,457 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-22 19:52:50,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:50,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:50,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:50,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,499 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-22 19:52:50,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:50,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:50,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:50,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,529 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-22 19:52:50,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:50,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:50,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:50,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,560 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-22 19:52:50,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:50,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:50,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,591 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-22 19:52:50,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:50,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:50,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,621 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-22 19:52:50,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:50,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:50,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:50,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,691 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-22 19:52:50,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:50,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:50,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:50,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,719 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-22 19:52:50,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:50,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:50,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,762 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-22 19:52:50,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:50,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,771 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-22 19:52:50,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,772 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-22 19:52:50,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:50,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,790 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-22 19:52:50,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:50,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:50,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:50,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:50,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,839 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-22 19:52:50,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:50,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:50,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:50,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:50,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:50,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:50,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:50,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:52:50,864 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-22 19:52:50,864 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-22 19:52:50,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:50,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:50,867 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:50,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-22 19:52:50,869 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:52:50,879 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 19:52:50,879 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:52:50,879 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_2 Supporting invariants [] [2021-12-22 19:52:50,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-22 19:52:50,931 INFO L297 tatePredicateManager]: 9 out of 11 supporting invariants were superfluous and have been removed [2021-12-22 19:52:50,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:50,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-22 19:52:50,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:50,998 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-22 19:52:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:51,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-22 19:52:51,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:51,054 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2021-12-22 19:52:51,059 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-22 19:52:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:51,116 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-22 19:52:51,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:51,175 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 69 transitions. Complement of second has 10 states. [2021-12-22 19:52:51,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:51,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:51,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2021-12-22 19:52:51,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 5 letters. [2021-12-22 19:52:51,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:51,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-22 19:52:51,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:51,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 10 letters. [2021-12-22 19:52:51,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:51,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 69 transitions. [2021-12-22 19:52:51,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-22 19:52:51,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 48 states and 68 transitions. [2021-12-22 19:52:51,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-22 19:52:51,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-12-22 19:52:51,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2021-12-22 19:52:51,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:51,180 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-12-22 19:52:51,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2021-12-22 19:52:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2021-12-22 19:52:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 44 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:51,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2021-12-22 19:52:51,183 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-22 19:52:51,183 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-22 19:52:51,183 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-22 19:52:51,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 64 transitions. [2021-12-22 19:52:51,184 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-22 19:52:51,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:51,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:51,185 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:52:51,185 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2021-12-22 19:52:51,185 INFO L791 eck$LassoCheckResult]: Stem: 387#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 388#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 403#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 416#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 423#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 420#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 417#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 418#L559-2 [2021-12-22 19:52:51,185 INFO L793 eck$LassoCheckResult]: Loop: 418#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 425#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 424#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 393#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 394#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 419#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 404#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 400#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 401#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 421#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 418#L559-2 [2021-12-22 19:52:51,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:51,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 2 times [2021-12-22 19:52:51,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:51,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789035022] [2021-12-22 19:52:51,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:51,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:51,195 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:51,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:51,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1870690047, now seen corresponding path program 1 times [2021-12-22 19:52:51,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:51,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992279152] [2021-12-22 19:52:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:51,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:51,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:52:51,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992279152] [2021-12-22 19:52:51,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992279152] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:52:51,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350519098] [2021-12-22 19:52:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:51,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:52:51,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:51,272 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 19:52:51,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-22 19:52:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:51,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-22 19:52:51,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:51,383 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-22 19:52:51,393 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-22 19:52:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:51,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:52:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:51,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350519098] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:52:51,435 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:52:51,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2021-12-22 19:52:51,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830634148] [2021-12-22 19:52:51,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:52:51,436 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 19:52:51,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:52:51,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 19:52:51,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-22 19:52:51,437 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. cyclomatic complexity: 24 Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:51,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:52:51,502 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2021-12-22 19:52:51,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 19:52:51,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 85 transitions. [2021-12-22 19:52:51,503 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-22 19:52:51,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 62 states and 80 transitions. [2021-12-22 19:52:51,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-12-22 19:52:51,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-12-22 19:52:51,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 80 transitions. [2021-12-22 19:52:51,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:51,505 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 80 transitions. [2021-12-22 19:52:51,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 80 transitions. [2021-12-22 19:52:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2021-12-22 19:52:51,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.34) internal successors, (67), 49 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2021-12-22 19:52:51,508 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-22 19:52:51,508 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-22 19:52:51,508 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-22 19:52:51,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 67 transitions. [2021-12-22 19:52:51,508 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-22 19:52:51,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:51,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:51,509 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:52:51,509 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:51,509 INFO L791 eck$LassoCheckResult]: Stem: 570#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 571#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 589#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 598#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 619#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 618#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 599#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 573#L559-2 [2021-12-22 19:52:51,509 INFO L793 eck$LassoCheckResult]: Loop: 573#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 577#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 584#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 585#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 572#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 573#L559-2 [2021-12-22 19:52:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:51,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 3 times [2021-12-22 19:52:51,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:51,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849684761] [2021-12-22 19:52:51,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:51,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:51,518 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:51,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:51,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:51,526 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 2 times [2021-12-22 19:52:51,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:51,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077026290] [2021-12-22 19:52:51,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:51,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:51,531 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:51,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1594795075, now seen corresponding path program 1 times [2021-12-22 19:52:51,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021049103] [2021-12-22 19:52:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:51,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:51,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-22 19:52:51,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:51,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 19:52:51,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021049103] [2021-12-22 19:52:51,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021049103] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 19:52:51,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942130866] [2021-12-22 19:52:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:51,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 19:52:51,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:51,644 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 19:52:51,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-22 19:52:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:51,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-22 19:52:51,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:51,698 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-22 19:52:51,723 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2021-12-22 19:52:51,728 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 19:52:51,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-12-22 19:52:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:51,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 19:52:51,806 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_142 (Array Int Int))) (<= 0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base|))) (store .cse0 |c_ULTIMATE.start_main_~x~0#1.offset| (+ (- 1) (select .cse0 |c_ULTIMATE.start_main_~x~0#1.offset|))))) |c_ULTIMATE.start_main_~y~0#1.base| v_ArrVal_142) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) is different from false [2021-12-22 19:52:51,866 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-22 19:52:51,866 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 25 [2021-12-22 19:52:51,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-12-22 19:52:51,870 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-22 19:52:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:51,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942130866] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 19:52:51,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 19:52:51,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2021-12-22 19:52:51,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363092957] [2021-12-22 19:52:51,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 19:52:51,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 19:52:51,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-22 19:52:51,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=136, Unknown=2, NotChecked=24, Total=210 [2021-12-22 19:52:51,969 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. cyclomatic complexity: 22 Second operand has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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) [2021-12-22 19:52:52,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 19:52:52,095 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-12-22 19:52:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 19:52:52,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. [2021-12-22 19:52:52,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-22 19:52:52,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 40 states and 50 transitions. [2021-12-22 19:52:52,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-22 19:52:52,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-22 19:52:52,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2021-12-22 19:52:52,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:52,097 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-22 19:52:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2021-12-22 19:52:52,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-22 19:52:52,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:52,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-12-22 19:52:52,099 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-22 19:52:52,099 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-22 19:52:52,099 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-22 19:52:52,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-12-22 19:52:52,100 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-22 19:52:52,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:52,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:52,100 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:52:52,100 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:52,100 INFO L791 eck$LassoCheckResult]: Stem: 757#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 758#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 774#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 782#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 786#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 785#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 784#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 776#L559-2 [2021-12-22 19:52:52,100 INFO L793 eck$LassoCheckResult]: Loop: 776#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 789#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 788#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 767#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 768#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 776#L559-2 [2021-12-22 19:52:52,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849169, now seen corresponding path program 1 times [2021-12-22 19:52:52,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:52,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924819206] [2021-12-22 19:52:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:52,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:52,112 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:52,117 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:52,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:52,117 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 1 times [2021-12-22 19:52:52,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:52,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430111317] [2021-12-22 19:52:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:52,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:52,129 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:52,132 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:52,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1652053123, now seen corresponding path program 2 times [2021-12-22 19:52:52,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:52,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409400144] [2021-12-22 19:52:52,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:52,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:52,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:52,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:52,469 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:52:52,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:52:52,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:52:52,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:52:52,469 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:52:52,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:52,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:52:52,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:52:52,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration6_Lasso [2021-12-22 19:52:52,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:52:52,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:52:52,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:52,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:52:52,865 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:52:52,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:52,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:52,884 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:52,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:52,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:52,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:52,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:52,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:52,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:52,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:52,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:52,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:52,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-22 19:52:52,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:52,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:52,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:52,917 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:52,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-22 19:52:52,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:52,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:52,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:52,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:52,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:52,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:52,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:52,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:52,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:52,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:52,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:52,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:52,949 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:52,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-22 19:52:52,951 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 [2021-12-22 19:52:52,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:52,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:52,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:52,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:52,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:52,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:52,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:53,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-22 19:52:53,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:53,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:53,006 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:53,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-22 19:52:53,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:53,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:53,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:53,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:53,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:53,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:53,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:53,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:53,017 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:53,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-22 19:52:53,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:53,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:53,035 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:53,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-22 19:52:53,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:53,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:53,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:53,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:53,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:53,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:53,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:53,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:53,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:53,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-22 19:52:53,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:53,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:53,072 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:53,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-22 19:52:53,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:53,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:53,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:53,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:53,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:53,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:53,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:53,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:53,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:53,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:53,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:53,116 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:53,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-22 19:52:53,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:53,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:53,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:53,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:53,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:53,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:53,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:53,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:53,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-22 19:52:53,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:53,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:53,212 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:53,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-22 19:52:53,215 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:53,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:53,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:53,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:53,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:53,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:53,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:53,229 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:52:53,234 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-22 19:52:53,234 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-22 19:52:53,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:53,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:53,235 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:53,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-22 19:52:53,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:52:53,244 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 19:52:53,245 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:52:53,245 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_3 Supporting invariants [] [2021-12-22 19:52:53,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-22 19:52:53,277 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-22 19:52:53,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:53,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:53,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:53,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:52:53,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:53,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:53,362 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:52:53,363 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:53,381 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 64 states and 78 transitions. Complement of second has 9 states. [2021-12-22 19:52:53,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:53,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-22 19:52:53,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-22 19:52:53,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:53,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-22 19:52:53,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:53,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-22 19:52:53,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:53,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 78 transitions. [2021-12-22 19:52:53,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-22 19:52:53,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 54 states and 65 transitions. [2021-12-22 19:52:53,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-22 19:52:53,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-22 19:52:53,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 65 transitions. [2021-12-22 19:52:53,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:53,385 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-22 19:52:53,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 65 transitions. [2021-12-22 19:52:53,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-22 19:52:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 53 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-12-22 19:52:53,387 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-22 19:52:53,387 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-22 19:52:53,387 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-22 19:52:53,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 65 transitions. [2021-12-22 19:52:53,388 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-22 19:52:53,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:53,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:53,389 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 19:52:53,389 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:53,389 INFO L791 eck$LassoCheckResult]: Stem: 969#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 970#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 987#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 996#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1015#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1012#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 971#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 972#L559-2 [2021-12-22 19:52:53,389 INFO L793 eck$LassoCheckResult]: Loop: 972#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 979#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 982#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 983#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 976#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 972#L559-2 [2021-12-22 19:52:53,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:53,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849425, now seen corresponding path program 1 times [2021-12-22 19:52:53,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:53,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666660660] [2021-12-22 19:52:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:53,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:53,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:53,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:53,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:53,402 INFO L85 PathProgramCache]: Analyzing trace with hash 35409939, now seen corresponding path program 1 times [2021-12-22 19:52:53,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:53,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864590838] [2021-12-22 19:52:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:53,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:53,407 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:53,410 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash 391181443, now seen corresponding path program 2 times [2021-12-22 19:52:53,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:53,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750525854] [2021-12-22 19:52:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:53,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:53,419 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:53,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:53,751 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:52:53,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:52:53,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:52:53,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:52:53,751 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:52:53,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:53,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:52:53,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:52:53,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration7_Lasso [2021-12-22 19:52:53,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:52:53,751 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:52:53,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:53,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:54,165 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:52:54,165 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:52:54,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,166 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-22 19:52:54,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:54,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:54,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:54,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-22 19:52:54,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,196 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-22 19:52:54,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,206 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-22 19:52:54,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,232 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-22 19:52:54,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:54,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:54,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:54,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-22 19:52:54,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,286 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-22 19:52:54,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:54,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,324 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-22 19:52:54,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:54,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:54,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:54,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,350 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 [2021-12-22 19:52:54,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,353 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-22 19:52:54,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:54,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:54,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:54,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-22 19:52:54,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,386 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-22 19:52:54,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:54,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:54,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:54,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-22 19:52:54,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,421 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-22 19:52:54,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-22 19:52:54,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,464 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-22 19:52:54,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:54,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,510 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-22 19:52:54,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-22 19:52:54,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,546 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-22 19:52:54,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,586 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 [2021-12-22 19:52:54,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,587 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-22 19:52:54,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,624 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 [2021-12-22 19:52:54,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,625 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-22 19:52:54,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:54,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-22 19:52:54,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,667 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-22 19:52:54,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:54,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:54,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:54,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:54,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:54,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:54,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:54,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:52:54,688 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-22 19:52:54,688 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-22 19:52:54,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:54,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:54,690 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:54,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-22 19:52:54,691 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:52:54,698 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 19:52:54,698 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:52:54,698 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_4 Supporting invariants [] [2021-12-22 19:52:54,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:54,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:54,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:54,786 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-22 19:52:54,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:54,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:54,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:54,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-22 19:52:54,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:54,924 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-22 19:52:54,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 65 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:54,959 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 65 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 112 states and 133 transitions. Complement of second has 11 states. [2021-12-22 19:52:54,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:54,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-12-22 19:52:54,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-22 19:52:54,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:54,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-22 19:52:54,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:54,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-22 19:52:54,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:54,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 133 transitions. [2021-12-22 19:52:54,962 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-12-22 19:52:54,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 102 states and 122 transitions. [2021-12-22 19:52:54,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-22 19:52:54,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-22 19:52:54,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 122 transitions. [2021-12-22 19:52:54,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:54,963 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 122 transitions. [2021-12-22 19:52:54,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 122 transitions. [2021-12-22 19:52:54,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 60. [2021-12-22 19:52:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 59 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:54,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions. [2021-12-22 19:52:54,966 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-22 19:52:54,966 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-22 19:52:54,967 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-22 19:52:54,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 73 transitions. [2021-12-22 19:52:54,967 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-22 19:52:54,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:54,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:54,968 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2021-12-22 19:52:54,968 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:54,968 INFO L791 eck$LassoCheckResult]: Stem: 1247#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1248#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1265#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1283#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1280#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1281#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1271#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 1277#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1266#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1262#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1263#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1249#L559 [2021-12-22 19:52:54,968 INFO L793 eck$LassoCheckResult]: Loop: 1249#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 1250#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1254#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1296#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1278#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1249#L559 [2021-12-22 19:52:54,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:54,968 INFO L85 PathProgramCache]: Analyzing trace with hash -125928577, now seen corresponding path program 3 times [2021-12-22 19:52:54,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:54,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873257613] [2021-12-22 19:52:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:54,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:54,975 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:54,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 3 times [2021-12-22 19:52:54,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:54,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456772984] [2021-12-22 19:52:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:54,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:54,985 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:54,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1691624047, now seen corresponding path program 1 times [2021-12-22 19:52:54,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:54,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907262199] [2021-12-22 19:52:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:54,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:54,997 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:55,003 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:55,476 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:52:55,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:52:55,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:52:55,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:52:55,476 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:52:55,476 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:55,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:52:55,476 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:52:55,476 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration8_Lasso [2021-12-22 19:52:55,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:52:55,477 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:52:55,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:55,959 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:52:55,959 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:52:55,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:55,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:55,960 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:55,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-22 19:52:55,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:55,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:55,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:55,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:55,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:55,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:55,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:55,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:55,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,000 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 [2021-12-22 19:52:56,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,002 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:56,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-22 19:52:56,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:56,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:56,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:56,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-22 19:52:56,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,043 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:56,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-22 19:52:56,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:56,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:56,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:56,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,078 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:56,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-22 19:52:56,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:56,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:56,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,118 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 [2021-12-22 19:52:56,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,119 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) [2021-12-22 19:52:56,120 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 [2021-12-22 19:52:56,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:56,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:56,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:56,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,145 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 [2021-12-22 19:52:56,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,146 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) [2021-12-22 19:52:56,147 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 [2021-12-22 19:52:56,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:56,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:56,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,173 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 [2021-12-22 19:52:56,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,175 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) [2021-12-22 19:52:56,175 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 [2021-12-22 19:52:56,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,185 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:56,185 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:56,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-22 19:52:56,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,217 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) [2021-12-22 19:52:56,218 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 [2021-12-22 19:52:56,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:56,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:56,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:56,259 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 [2021-12-22 19:52:56,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,261 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) [2021-12-22 19:52:56,261 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 [2021-12-22 19:52:56,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:56,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:56,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:56,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:56,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:56,271 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:56,271 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:56,283 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:52:56,291 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-22 19:52:56,291 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-12-22 19:52:56,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:56,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:56,292 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) [2021-12-22 19:52:56,292 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 [2021-12-22 19:52:56,294 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:52:56,314 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 19:52:56,315 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:52:56,315 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_5) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_5 Supporting invariants [] [2021-12-22 19:52:56,330 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 [2021-12-22 19:52:56,351 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-22 19:52:56,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:56,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:56,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:56,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 19:52:56,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:56,425 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-22 19:52:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:56,443 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:52:56,443 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:56,463 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 101 states and 120 transitions. Complement of second has 7 states. [2021-12-22 19:52:56,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-22 19:52:56,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-22 19:52:56,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:56,464 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-22 19:52:56,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:56,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:56,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:56,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 19:52:56,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:56,520 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-22 19:52:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:56,538 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:52:56,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:56,556 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 101 states and 120 transitions. Complement of second has 7 states. [2021-12-22 19:52:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:56,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-22 19:52:56,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-22 19:52:56,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:56,557 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-22 19:52:56,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:56,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:56,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:56,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 19:52:56,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:56,608 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-22 19:52:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:56,628 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:52:56,628 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:56,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 83 states and 97 transitions. Complement of second has 6 states. [2021-12-22 19:52:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-12-22 19:52:56,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-22 19:52:56,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:56,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 5 letters. [2021-12-22 19:52:56,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:56,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 10 letters. [2021-12-22 19:52:56,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:56,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 97 transitions. [2021-12-22 19:52:56,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-22 19:52:56,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 62 states and 74 transitions. [2021-12-22 19:52:56,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-22 19:52:56,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-22 19:52:56,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 74 transitions. [2021-12-22 19:52:56,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 19:52:56,657 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-12-22 19:52:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 74 transitions. [2021-12-22 19:52:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2021-12-22 19:52:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.2) internal successors, (66), 54 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:56,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-12-22 19:52:56,660 INFO L704 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-22 19:52:56,660 INFO L587 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-22 19:52:56,660 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-22 19:52:56,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 66 transitions. [2021-12-22 19:52:56,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-22 19:52:56,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 19:52:56,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 19:52:56,661 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 1, 1, 1] [2021-12-22 19:52:56,661 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 19:52:56,661 INFO L791 eck$LassoCheckResult]: Stem: 1824#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1843#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1849#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1848#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1847#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1844#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1846#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1873#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1872#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1871#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1859#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 1852#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1857#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1855#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1854#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1851#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1829#L559-2 [2021-12-22 19:52:56,661 INFO L793 eck$LassoCheckResult]: Loop: 1829#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1830#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1856#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1833#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1834#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1829#L559-2 [2021-12-22 19:52:56,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:56,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1675310445, now seen corresponding path program 1 times [2021-12-22 19:52:56,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:56,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435685898] [2021-12-22 19:52:56,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:56,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:56,671 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:56,677 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:56,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:56,678 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 2 times [2021-12-22 19:52:56,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:56,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680801794] [2021-12-22 19:52:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:56,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:56,686 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:56,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash 143216577, now seen corresponding path program 2 times [2021-12-22 19:52:56,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 19:52:56,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765579869] [2021-12-22 19:52:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 19:52:56,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 19:52:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:56,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 19:52:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 19:52:56,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 19:52:56,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:57,488 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 19:52:57,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 19:52:57,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 19:52:57,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 19:52:57,488 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 19:52:57,488 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:57,488 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 19:52:57,488 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 19:52:57,488 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration9_Lasso [2021-12-22 19:52:57,488 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 19:52:57,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 19:52:57,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 19:52:57,924 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 19:52:57,924 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 19:52:57,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:57,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:57,925 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) [2021-12-22 19:52:57,926 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 [2021-12-22 19:52:57,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:57,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:57,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:57,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:57,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:57,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:57,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:57,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:57,953 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 [2021-12-22 19:52:57,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:57,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:57,954 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) [2021-12-22 19:52:57,955 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 [2021-12-22 19:52:57,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:57,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:57,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:57,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:57,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:57,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:57,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:57,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:57,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:57,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-22 19:52:57,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:57,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:57,980 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) [2021-12-22 19:52:57,981 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 [2021-12-22 19:52:57,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:57,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:57,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:57,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:57,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:57,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:57,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:57,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:57,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-22 19:52:58,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,008 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-22 19:52:58,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:58,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:58,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:58,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-22 19:52:58,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,036 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-22 19:52:58,038 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 [2021-12-22 19:52:58,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:58,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:58,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:58,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-22 19:52:58,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,064 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-22 19:52:58,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:58,075 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:58,077 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:58,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,095 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-22 19:52:58,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:58,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:58,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:58,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-12-22 19:52:58,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,121 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-22 19:52:58,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:58,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:58,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:58,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,163 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-22 19:52:58,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:58,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:58,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:58,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-12-22 19:52:58,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,189 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-22 19:52:58,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:58,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:58,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:58,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-12-22 19:52:58,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,222 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-12-22 19:52:58,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 19:52:58,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 19:52:58,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 19:52:58,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-12-22 19:52:58,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,248 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-12-22 19:52:58,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:58,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:58,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 19:52:58,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-12-22 19:52:58,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,292 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-12-22 19:52:58,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 19:52:58,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 19:52:58,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 19:52:58,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 19:52:58,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 19:52:58,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 19:52:58,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 19:52:58,334 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 19:52:58,338 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-22 19:52:58,338 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-22 19:52:58,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 19:52:58,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 19:52:58,340 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 19:52:58,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-12-22 19:52:58,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 19:52:58,360 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 19:52:58,360 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 19:52:58,360 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_6) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_6 Supporting invariants [] [2021-12-22 19:52:58,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-12-22 19:52:58,393 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-22 19:52:58,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:58,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:58,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:58,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:52:58,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:58,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:58,498 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:52:58,498 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:58,517 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 74 transitions. Complement of second has 9 states. [2021-12-22 19:52:58,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:58,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-22 19:52:58,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-22 19:52:58,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:58,519 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-22 19:52:58,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:58,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:58,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:58,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:52:58,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:58,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:58,629 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:52:58,629 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:58,646 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 74 transitions. Complement of second has 9 states. [2021-12-22 19:52:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-22 19:52:58,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-22 19:52:58,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:58,647 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-22 19:52:58,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 19:52:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:58,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 19:52:58,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 19:52:58,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 19:52:58,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 19:52:58,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 19:52:58,754 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 19:52:58,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:58,773 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 84 transitions. Complement of second has 8 states. [2021-12-22 19:52:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-22 19:52:58,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 19:52:58,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-22 19:52:58,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-22 19:52:58,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:58,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 22 letters. Loop has 5 letters. [2021-12-22 19:52:58,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:58,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 10 letters. [2021-12-22 19:52:58,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 19:52:58,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 84 transitions. [2021-12-22 19:52:58,776 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:52:58,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 0 states and 0 transitions. [2021-12-22 19:52:58,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 19:52:58,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 19:52:58,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 19:52:58,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 19:52:58,776 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:52:58,776 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:52:58,776 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 19:52:58,776 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-22 19:52:58,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-22 19:52:58,777 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 19:52:58,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-22 19:52:58,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 07:52:58 BoogieIcfgContainer [2021-12-22 19:52:58,781 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 19:52:58,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 19:52:58,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 19:52:58,782 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 19:52:58,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:52:47" (3/4) ... [2021-12-22 19:52:58,784 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 19:52:58,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 19:52:58,784 INFO L158 Benchmark]: Toolchain (without parser) took 11949.42ms. Allocated memory was 151.0MB in the beginning and 329.3MB in the end (delta: 178.3MB). Free memory was 91.5MB in the beginning and 130.5MB in the end (delta: -39.0MB). Peak memory consumption was 138.3MB. Max. memory is 16.1GB. [2021-12-22 19:52:58,784 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:52:58,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.05ms. Allocated memory is still 151.0MB. Free memory was 91.3MB in the beginning and 119.9MB in the end (delta: -28.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-22 19:52:58,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.13ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 19:52:58,785 INFO L158 Benchmark]: Boogie Preprocessor took 35.62ms. Allocated memory is still 151.0MB. Free memory was 117.8MB in the beginning and 116.8MB in the end (delta: 970.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:52:58,785 INFO L158 Benchmark]: RCFGBuilder took 234.34ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 105.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-22 19:52:58,786 INFO L158 Benchmark]: BuchiAutomizer took 11270.70ms. Allocated memory was 151.0MB in the beginning and 329.3MB in the end (delta: 178.3MB). Free memory was 105.2MB in the beginning and 130.5MB in the end (delta: -25.3MB). Peak memory consumption was 154.5MB. Max. memory is 16.1GB. [2021-12-22 19:52:58,786 INFO L158 Benchmark]: Witness Printer took 2.45ms. Allocated memory is still 329.3MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 19:52:58,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.05ms. Allocated memory is still 151.0MB. Free memory was 91.3MB in the beginning and 119.9MB in the end (delta: -28.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.13ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 117.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.62ms. Allocated memory is still 151.0MB. Free memory was 117.8MB in the beginning and 116.8MB in the end (delta: 970.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 234.34ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 105.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 11270.70ms. Allocated memory was 151.0MB in the beginning and 329.3MB in the end (delta: 178.3MB). Free memory was 105.2MB in the beginning and 130.5MB in the end (delta: -25.3MB). Peak memory consumption was 154.5MB. Max. memory is 16.1GB. * Witness Printer took 2.45ms. Allocated memory is still 329.3MB. Free memory is still 130.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (3 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 8 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 6 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.2s and 10 iterations. TraceHistogramMax:3. Analysis of lassos took 9.4s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 67 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 60 states and ocurred in iteration 7. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 24 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 364 IncrementalHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 115 mSDtfsCounter, 364 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital227 mio100 ax108 hnf100 lsp87 ukn63 mio100 lsp39 div100 bol100 ite100 ukn100 eq178 hnf89 smp94 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 70ms VariablesStem: 5 VariablesLoop: 4 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! [2021-12-22 19:52:58,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-12-22 19:52:59,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-12-22 19:52:59,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-12-22 19:52:59,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE