./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 8f053c4de2291716f40c056dd251ccd74d5a7493 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:16:40,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:16:40,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:16:40,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:16:40,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:16:40,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:16:40,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:16:40,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:16:40,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:16:40,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:16:40,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:16:40,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:16:40,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:16:40,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:16:40,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:16:40,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:16:40,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:16:40,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:16:40,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:16:40,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:16:40,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:16:40,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:16:40,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:16:40,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:16:40,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:16:40,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:16:40,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:16:40,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:16:40,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:16:40,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:16:40,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:16:40,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:16:40,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:16:40,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:16:40,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:16:40,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:16:40,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:16:40,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:16:40,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:16:40,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:16:40,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:16:40,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:16:40,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:16:40,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:16:40,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:16:40,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:16:40,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:16:40,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:16:40,170 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:16:40,170 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:16:40,170 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:16:40,170 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:16:40,171 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:16:40,171 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:16:40,171 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:16:40,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:16:40,171 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:16:40,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:16:40,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:16:40,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:16:40,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:16:40,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:16:40,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:16:40,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:16:40,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:16:40,174 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:16:40,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f053c4de2291716f40c056dd251ccd74d5a7493 [2021-08-27 15:16:40,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:16:40,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:16:40,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:16:40,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:16:40,436 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:16:40,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2021-08-27 15:16:40,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cba065a7/d662b7f396f94b0ba2629535822ab550/FLAG490ff9aa9 [2021-08-27 15:16:40,925 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:16:40,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2021-08-27 15:16:40,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cba065a7/d662b7f396f94b0ba2629535822ab550/FLAG490ff9aa9 [2021-08-27 15:16:40,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cba065a7/d662b7f396f94b0ba2629535822ab550 [2021-08-27 15:16:40,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:16:40,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:16:40,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:16:40,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:16:40,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:16:40,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:16:40" (1/1) ... [2021-08-27 15:16:40,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:40, skipping insertion in model container [2021-08-27 15:16:40,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:16:40" (1/1) ... [2021-08-27 15:16:40,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:16:40,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:16:41,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:16:41,190 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:16:41,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:16:41,239 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:16:41,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41 WrapperNode [2021-08-27 15:16:41,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:16:41,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:16:41,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:16:41,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:16:41,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:16:41,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:16:41,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:16:41,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:16:41,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:16:41,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:16:41,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:16:41,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:16:41,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (1/1) ... [2021-08-27 15:16:41,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:41,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:41,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:41,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:16:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 15:16:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 15:16:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:16:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 15:16:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 15:16:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 15:16:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:16:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:16:41,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:16:41,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:16:41,658 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-27 15:16:41,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:16:41 BoogieIcfgContainer [2021-08-27 15:16:41,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:16:41,660 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:16:41,660 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:16:41,662 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:16:41,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:16:41,663 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:16:40" (1/3) ... [2021-08-27 15:16:41,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28d5ef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:16:41, skipping insertion in model container [2021-08-27 15:16:41,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:16:41,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:16:41" (2/3) ... [2021-08-27 15:16:41,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28d5ef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:16:41, skipping insertion in model container [2021-08-27 15:16:41,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:16:41,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:16:41" (3/3) ... [2021-08-27 15:16:41,666 INFO L389 chiAutomizerObserver]: Analyzing ICFG test-0232_1-2.i [2021-08-27 15:16:41,701 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:16:41,701 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:16:41,701 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:16:41,702 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:16:41,702 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:16:41,702 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:16:41,702 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:16:41,702 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:16:41,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:41,725 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-27 15:16:41,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:16:41,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:16:41,729 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:16:41,729 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 15:16:41,729 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:16:41,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:41,731 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-27 15:16:41,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:16:41,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:16:41,732 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:16:41,732 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 15:16:41,736 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 14#L543-3true [2021-08-27 15:16:41,737 INFO L793 eck$LassoCheckResult]: Loop: 14#L543-3true append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 5#L534true assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 12#L534-2true call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 7#L529true main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 11#L543-1true assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 14#L543-3true [2021-08-27 15:16:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:41,745 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 15:16:41,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:41,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727832247] [2021-08-27 15:16:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:41,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:41,821 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:41,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:41,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:41,846 INFO L82 PathProgramCache]: Analyzing trace with hash 34451375, now seen corresponding path program 1 times [2021-08-27 15:16:41,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:41,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398490489] [2021-08-27 15:16:41,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:41,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:41,865 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:41,900 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:41,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:41,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1805890861, now seen corresponding path program 1 times [2021-08-27 15:16:41,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:41,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472953336] [2021-08-27 15:16:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:41,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:16:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:16:42,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:16:42,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472953336] [2021-08-27 15:16:42,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472953336] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:16:42,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:16:42,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 15:16:42,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569938656] [2021-08-27 15:16:43,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:16:43,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 15:16:43,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 15:16:43,253 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-08-27 15:16:43,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:16:43,290 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-08-27 15:16:43,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 15:16:43,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2021-08-27 15:16:43,293 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 15:16:43,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 16 transitions. [2021-08-27 15:16:43,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-08-27 15:16:43,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-08-27 15:16:43,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-08-27 15:16:43,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:16:43,297 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-08-27 15:16:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-08-27 15:16:43,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-08-27 15:16:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 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) [2021-08-27 15:16:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-08-27 15:16:43,312 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-08-27 15:16:43,312 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-08-27 15:16:43,312 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:16:43,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-08-27 15:16:43,313 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-08-27 15:16:43,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:16:43,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:16:43,314 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 15:16:43,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 15:16:43,314 INFO L791 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 47#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 51#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 48#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 44#L534-2 [2021-08-27 15:16:43,314 INFO L793 eck$LassoCheckResult]: Loop: 44#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 45#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 49#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 53#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 54#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 44#L534-2 [2021-08-27 15:16:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:43,315 INFO L82 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2021-08-27 15:16:43,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:43,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073897971] [2021-08-27 15:16:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:43,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:43,327 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:43,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:43,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:43,342 INFO L82 PathProgramCache]: Analyzing trace with hash 41102165, now seen corresponding path program 2 times [2021-08-27 15:16:43,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:43,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704172883] [2021-08-27 15:16:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:43,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:43,369 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:43,382 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:43,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:43,382 INFO L82 PathProgramCache]: Analyzing trace with hash 351588334, now seen corresponding path program 1 times [2021-08-27 15:16:43,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:43,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076068458] [2021-08-27 15:16:43,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:43,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:43,429 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:43,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:45,761 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:16:45,762 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:16:45,762 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:16:45,762 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:16:45,762 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:16:45,762 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:45,762 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:16:45,763 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:16:45,763 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-2.i_Iteration2_Lasso [2021-08-27 15:16:45,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:16:45,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:16:45,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:45,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:45,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:47,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:16:51,787 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:16:51,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:16:51,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:51,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:51,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:51,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 15:16:51,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:51,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:51,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:51,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:51,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:51,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:51,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:51,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:51,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:51,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:51,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:51,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:51,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:51,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 15:16:51,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:51,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:51,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:51,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:51,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:51,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:51,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:51,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:51,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-27 15:16:51,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:51,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:51,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:51,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 15:16:51,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:51,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:51,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:51,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:51,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:51,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:51,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:51,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:51,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:51,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:51,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:51,910 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:51,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 15:16:51,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:51,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:51,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:51,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:51,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:51,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:51,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:51,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:51,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:51,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:51,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:51,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:51,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 15:16:51,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:51,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:51,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:51,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:51,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:51,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:51,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:51,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:51,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-08-27 15:16:51,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:51,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:51,977 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:51,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 15:16:51,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:51,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:51,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:51,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:51,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:51,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:51,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:51,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,013 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 [2021-08-27 15:16:52,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 15:16:52,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:52,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:52,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:52,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 15:16:52,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:52,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:52,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 15:16:52,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:52,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:52,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,110 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 15:16:52,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:52,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:52,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:52,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,141 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 15:16:52,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:52,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:52,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:52,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,171 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 15:16:52,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:52,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:52,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:52,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,201 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 15:16:52,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:52,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:52,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:52,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-08-27 15:16:52,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,234 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 15:16:52,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,245 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:52,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:52,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,266 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 15:16:52,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:52,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:52,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,319 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 15:16:52,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:52,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:52,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,347 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 [2021-08-27 15:16:52,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,348 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 15:16:52,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:52,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:52,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:52,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:52,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:52,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:52,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:52,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:52,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:52,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:52,376 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:52,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 15:16:52,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:52,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:52,386 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-08-27 15:16:52,386 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2021-08-27 15:16:52,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:53,244 INFO L401 nArgumentSynthesizer]: We have 208 Motzkin's Theorem applications. [2021-08-27 15:16:53,244 INFO L402 nArgumentSynthesizer]: A total of 16 supporting invariants were added. [2021-08-27 15:16:54,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:54,898 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 [2021-08-27 15:16:54,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:54,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:54,899 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:54,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 15:16:54,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:54,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:54,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:54,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:54,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:54,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:54,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:54,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:54,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:54,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:54,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:54,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:54,927 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:54,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 15:16:54,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:54,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:54,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:54,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:54,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:54,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:54,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:54,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:54,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:54,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:54,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:54,982 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:54,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 15:16:54,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:54,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:54,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:54,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:54,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:54,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:54,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:54,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:54,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,008 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) [2021-08-27 15:16:55,009 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 [2021-08-27 15:16:55,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-08-27 15:16:55,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,044 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) [2021-08-27 15:16:55,045 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 [2021-08-27 15:16:55,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:55,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:55,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,090 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 15:16:55,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,116 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 15:16:55,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,141 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 [2021-08-27 15:16:55,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,142 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 15:16:55,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-08-27 15:16:55,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,173 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 15:16:55,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,204 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 [2021-08-27 15:16:55,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,205 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 15:16:55,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,231 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-27 15:16:55,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,324 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 [2021-08-27 15:16:55,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,325 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-27 15:16:55,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,353 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-27 15:16:55,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,402 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:55,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:55,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-27 15:16:55,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-08-27 15:16:55,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,445 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-27 15:16:55,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-08-27 15:16:55,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,476 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-27 15:16:55,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-08-27 15:16:55,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,501 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-27 15:16:55,503 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 [2021-08-27 15:16:55,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:16:55,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:16:55,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:16:55,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:16:55,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,538 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-27 15:16:55,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:16:55,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:16:55,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:16:55,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:16:55,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:16:55,548 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:16:55,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:16:55,557 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:16:55,566 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-08-27 15:16:55,566 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-08-27 15:16:55,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:16:55,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:55,576 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:16:55,578 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:16:55,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-27 15:16:55,605 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:16:55,605 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:16:55,606 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~c~0) = -2*~c~0 + 39 Supporting invariants [] [2021-08-27 15:16:55,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:55,665 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-08-27 15:16:55,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:16:55,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:16:55,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:16:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:16:55,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:16:55,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:16:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:16:55,788 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 [2021-08-27 15:16:55,789 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:55,809 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 19 states and 26 transitions. Complement of second has 6 states. [2021-08-27 15:16:55,810 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 [2021-08-27 15:16:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-08-27 15:16:55,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 5 letters. [2021-08-27 15:16:55,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:16:55,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 5 letters. [2021-08-27 15:16:55,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:16:55,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 10 letters. [2021-08-27 15:16:55,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:16:55,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2021-08-27 15:16:55,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:55,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 21 transitions. [2021-08-27 15:16:55,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-27 15:16:55,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-08-27 15:16:55,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-08-27 15:16:55,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:16:55,814 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-08-27 15:16:55,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-08-27 15:16:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-08-27 15:16:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-08-27 15:16:55,816 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-08-27 15:16:55,816 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-08-27 15:16:55,816 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 15:16:55,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-08-27 15:16:55,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:55,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:16:55,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:16:55,816 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:16:55,816 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 15:16:55,817 INFO L791 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 174#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 181#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 175#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 176#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 170#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 178#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 182#L543-4 assume !(main_~length~0 > 0); 180#L554-1 [2021-08-27 15:16:55,817 INFO L793 eck$LassoCheckResult]: Loop: 180#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 180#L554-1 [2021-08-27 15:16:55,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:55,817 INFO L82 PathProgramCache]: Analyzing trace with hash 149888852, now seen corresponding path program 1 times [2021-08-27 15:16:55,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:55,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605262224] [2021-08-27 15:16:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:55,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:16:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:16:55,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:16:55,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605262224] [2021-08-27 15:16:55,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605262224] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:16:55,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:16:55,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:16:55,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350275972] [2021-08-27 15:16:55,856 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:16:55,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:55,856 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2021-08-27 15:16:55,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:55,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323704668] [2021-08-27 15:16:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:55,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:55,868 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:55,873 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:55,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:16:56,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 15:16:56,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 15:16:56,000 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:16:56,015 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-08-27 15:16:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 15:16:56,015 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-08-27 15:16:56,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:56,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. [2021-08-27 15:16:56,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-08-27 15:16:56,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-08-27 15:16:56,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2021-08-27 15:16:56,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:16:56,018 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-08-27 15:16:56,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2021-08-27 15:16:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-08-27 15:16:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-08-27 15:16:56,021 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-08-27 15:16:56,021 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-08-27 15:16:56,021 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 15:16:56,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-08-27 15:16:56,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:56,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:16:56,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:16:56,023 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:16:56,023 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 15:16:56,023 INFO L791 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 213#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 220#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 214#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 215#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 209#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 217#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 221#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 219#L554-1 [2021-08-27 15:16:56,023 INFO L793 eck$LassoCheckResult]: Loop: 219#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 219#L554-1 [2021-08-27 15:16:56,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,024 INFO L82 PathProgramCache]: Analyzing trace with hash 149888850, now seen corresponding path program 1 times [2021-08-27 15:16:56,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745627569] [2021-08-27 15:16:56,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-27 15:16:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,092 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,118 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,119 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 2 times [2021-08-27 15:16:56,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871481410] [2021-08-27 15:16:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,123 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:56,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,132 INFO L82 PathProgramCache]: Analyzing trace with hash 351587092, now seen corresponding path program 1 times [2021-08-27 15:16:56,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994856314] [2021-08-27 15:16:56,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:16:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:16:56,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:16:56,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994856314] [2021-08-27 15:16:56,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994856314] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:16:56,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:16:56,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 15:16:56,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322871425] [2021-08-27 15:16:56,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:16:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 15:16:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 15:16:56,303 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:16:56,320 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2021-08-27 15:16:56,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 15:16:56,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-08-27 15:16:56,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:56,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 29 transitions. [2021-08-27 15:16:56,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-08-27 15:16:56,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-08-27 15:16:56,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2021-08-27 15:16:56,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:16:56,330 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-08-27 15:16:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2021-08-27 15:16:56,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2021-08-27 15:16:56,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:56,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-08-27 15:16:56,332 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-08-27 15:16:56,332 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-08-27 15:16:56,332 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 15:16:56,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2021-08-27 15:16:56,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:56,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:16:56,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:16:56,334 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-08-27 15:16:56,334 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 15:16:56,334 INFO L791 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 264#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 272#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 265#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 260#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 261#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 270#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 274#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 266#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 267#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 268#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 269#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 273#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 271#L554-1 [2021-08-27 15:16:56,334 INFO L793 eck$LassoCheckResult]: Loop: 271#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 271#L554-1 [2021-08-27 15:16:56,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,335 INFO L82 PathProgramCache]: Analyzing trace with hash -315524230, now seen corresponding path program 1 times [2021-08-27 15:16:56,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592161854] [2021-08-27 15:16:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:16:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:16:56,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:16:56,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592161854] [2021-08-27 15:16:56,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592161854] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:16:56,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451893064] [2021-08-27 15:16:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 15:16:56,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:16:56,393 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 15:16:56,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-08-27 15:16:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:16:56,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 15:16:56,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:16:56,566 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-08-27 15:16:56,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2021-08-27 15:16:56,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-08-27 15:16:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:16:56,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451893064] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 15:16:56,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 15:16:56,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-08-27 15:16:56,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718524560] [2021-08-27 15:16:56,654 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:16:56,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,655 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 3 times [2021-08-27 15:16:56,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548012391] [2021-08-27 15:16:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,658 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,661 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:56,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:16:56,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 15:16:56,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-27 15:16:56,804 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:56,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:16:56,854 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-08-27 15:16:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 15:16:56,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-08-27 15:16:56,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:56,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-08-27 15:16:56,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-08-27 15:16:56,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 15:16:56,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-08-27 15:16:56,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:16:56,857 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-08-27 15:16:56,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-08-27 15:16:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-08-27 15:16:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:16:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-08-27 15:16:56,859 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-08-27 15:16:56,860 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-08-27 15:16:56,860 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 15:16:56,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-08-27 15:16:56,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 15:16:56,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:16:56,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:16:56,861 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:16:56,861 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 15:16:56,861 INFO L791 eck$LassoCheckResult]: Stem: 345#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 346#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 353#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 347#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 348#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 344#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 351#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 355#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 349#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 341#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 342#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 350#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 354#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 352#L554-1 [2021-08-27 15:16:56,861 INFO L793 eck$LassoCheckResult]: Loop: 352#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 352#L554-1 [2021-08-27 15:16:56,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,862 INFO L82 PathProgramCache]: Analyzing trace with hash -317371272, now seen corresponding path program 1 times [2021-08-27 15:16:56,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542596943] [2021-08-27 15:16:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,888 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:56,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,912 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 4 times [2021-08-27 15:16:56,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56324255] [2021-08-27 15:16:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,916 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,918 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:16:56,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:16:56,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1248574802, now seen corresponding path program 1 times [2021-08-27 15:16:56,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:16:56,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28296818] [2021-08-27 15:16:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:16:56,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:16:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,941 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:16:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:16:56,977 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:17:18,985 WARN L207 SmtUtils]: Spent 21.87 s on a formula simplification. DAG size of input: 392 DAG size of output: 321 [2021-08-27 15:17:26,235 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:17:26,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:17:26,236 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:17:26,236 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:17:26,236 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:17:26,236 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:17:26,236 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:17:26,236 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:17:26,236 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-2.i_Iteration6_Lasso [2021-08-27 15:17:26,236 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:17:26,236 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:17:26,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:17:26,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:17:26,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:17:27,059 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-27 15:17:27,061 INFO L168 Benchmark]: Toolchain (without parser) took 46112.69 ms. Allocated memory was 65.0 MB in the beginning and 283.1 MB in the end (delta: 218.1 MB). Free memory was 44.0 MB in the beginning and 224.1 MB in the end (delta: -180.2 MB). Peak memory consumption was 182.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:17:27,061 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:17:27,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.19 ms. Allocated memory is still 65.0 MB. Free memory was 43.8 MB in the beginning and 42.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:17:27,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.43 ms. Allocated memory is still 65.0 MB. Free memory was 41.8 MB in the beginning and 40.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:17:27,062 INFO L168 Benchmark]: Boogie Preprocessor took 16.30 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 38.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:17:27,062 INFO L168 Benchmark]: RCFGBuilder took 371.13 ms. Allocated memory is still 65.0 MB. Free memory was 38.5 MB in the beginning and 38.0 MB in the end (delta: 432.8 kB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:17:27,063 INFO L168 Benchmark]: BuchiAutomizer took 45400.34 ms. Allocated memory was 65.0 MB in the beginning and 283.1 MB in the end (delta: 218.1 MB). Free memory was 37.8 MB in the beginning and 224.1 MB in the end (delta: -186.3 MB). Peak memory consumption was 175.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:17:27,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.19 ms. Allocated memory is still 65.0 MB. Free memory was 43.8 MB in the beginning and 42.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.43 ms. Allocated memory is still 65.0 MB. Free memory was 41.8 MB in the beginning and 40.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.30 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 38.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 371.13 ms. Allocated memory is still 65.0 MB. Free memory was 38.5 MB in the beginning and 38.0 MB in the end (delta: 432.8 kB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 45400.34 ms. Allocated memory was 65.0 MB in the beginning and 283.1 MB in the end (delta: 218.1 MB). Free memory was 37.8 MB in the beginning and 224.1 MB in the end (delta: -186.3 MB). Peak memory consumption was 175.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-27 15:17:27,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-08-27 15:17:27,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...