./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2aaf551f63785020042d5272893266519060a07e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:35:02,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:35:02,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:35:02,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:35:02,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:35:02,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:35:02,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:35:02,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:35:02,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:35:02,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:35:02,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:35:02,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:35:02,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:35:02,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:35:02,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:35:02,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:35:02,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:35:02,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:35:02,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:35:02,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:35:02,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:35:02,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:35:02,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:35:02,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:35:02,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:35:02,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:35:02,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:35:02,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:35:02,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:35:02,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:35:02,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:35:02,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:35:02,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:35:02,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:35:02,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:35:02,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:35:02,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:35:02,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:35:02,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:35:02,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:35:02,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:35:02,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:35:02,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:35:02,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:35:02,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:35:02,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:35:02,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:35:02,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:35:02,315 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:35:02,315 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:35:02,315 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:35:02,315 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:35:02,316 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:35:02,316 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:35:02,316 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:35:02,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:35:02,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:35:02,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:35:02,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:35:02,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:35:02,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:35:02,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:35:02,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:35:02,317 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:35:02,318 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:35:02,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:35:02,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:35:02,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:35:02,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:35:02,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:35:02,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:35:02,319 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:35:02,319 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aaf551f63785020042d5272893266519060a07e [2021-08-27 14:35:02,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:35:02,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:35:02,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:35:02,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:35:02,597 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:35:02,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2021-08-27 14:35:02,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c389c37/51c7028eac2e490ca2bec3f4329a3adf/FLAGad28e750b [2021-08-27 14:35:03,013 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:35:03,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2021-08-27 14:35:03,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c389c37/51c7028eac2e490ca2bec3f4329a3adf/FLAGad28e750b [2021-08-27 14:35:03,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c389c37/51c7028eac2e490ca2bec3f4329a3adf [2021-08-27 14:35:03,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:35:03,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:35:03,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:35:03,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:35:03,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:35:03,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52260442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03, skipping insertion in model container [2021-08-27 14:35:03,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:35:03,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:35:03,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:35:03,197 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:35:03,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:35:03,219 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:35:03,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03 WrapperNode [2021-08-27 14:35:03,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:35:03,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:35:03,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:35:03,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:35:03,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:35:03,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:35:03,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:35:03,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:35:03,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:35:03,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:35:03,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:35:03,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:35:03,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (1/1) ... [2021-08-27 14:35:03,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:03,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:03,318 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 14:35:03,341 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 14:35:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:35:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-08-27 14:35:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-08-27 14:35:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 14:35:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:35:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:35:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:35:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:35:03,624 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:35:03,624 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 14:35:03,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:35:03 BoogieIcfgContainer [2021-08-27 14:35:03,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:35:03,627 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:35:03,628 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:35:03,630 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:35:03,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:35:03,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:35:03" (1/3) ... [2021-08-27 14:35:03,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dfb3451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:35:03, skipping insertion in model container [2021-08-27 14:35:03,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:35:03,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:35:03" (2/3) ... [2021-08-27 14:35:03,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3dfb3451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:35:03, skipping insertion in model container [2021-08-27 14:35:03,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:35:03,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:35:03" (3/3) ... [2021-08-27 14:35:03,633 INFO L389 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex9.i [2021-08-27 14:35:03,672 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:35:03,673 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:35:03,673 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:35:03,673 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:35:03,673 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:35:03,673 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:35:03,673 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:35:03,673 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:35:03,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:35:03,693 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:35:03,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:35:03,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:35:03,697 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:35:03,697 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:35:03,697 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:35:03,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:35:03,699 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:35:03,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:35:03,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:35:03,699 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:35:03,700 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:35:03,704 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 11#L29-3true [2021-08-27 14:35:03,704 INFO L793 eck$LassoCheckResult]: Loop: 11#L29-3true call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 8#L29-1true assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 9#L33true call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 14#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 12#L9true assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 16#recFINALtrue assume true; 15#recEXITtrue >#33#return; 6#L33-1true havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 11#L29-3true [2021-08-27 14:35:03,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:03,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2021-08-27 14:35:03,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:03,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827210205] [2021-08-27 14:35:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:03,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:03,775 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:03,797 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:03,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:03,800 INFO L82 PathProgramCache]: Analyzing trace with hash 51331199, now seen corresponding path program 1 times [2021-08-27 14:35:03,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:03,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593699371] [2021-08-27 14:35:03,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:03,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:03,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:35:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:04,020 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 14:35:04,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:35:04,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593699371] [2021-08-27 14:35:04,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593699371] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:35:04,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:35:04,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 14:35:04,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962534049] [2021-08-27 14:35:04,026 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:35:04,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:35:04,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 14:35:04,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 14:35:04,037 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 14:35:04,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:35:04,146 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2021-08-27 14:35:04,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 14:35:04,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2021-08-27 14:35:04,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:35:04,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 16 transitions. [2021-08-27 14:35:04,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-08-27 14:35:04,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-08-27 14:35:04,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2021-08-27 14:35:04,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:35:04,155 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-08-27 14:35:04,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2021-08-27 14:35:04,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-08-27 14:35:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 14:35:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-08-27 14:35:04,172 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-08-27 14:35:04,172 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-08-27 14:35:04,172 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:35:04,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2021-08-27 14:35:04,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:35:04,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:35:04,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:35:04,174 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:35:04,174 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:35:04,174 INFO L791 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 56#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 57#L29-3 [2021-08-27 14:35:04,174 INFO L793 eck$LassoCheckResult]: Loop: 57#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 58#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 61#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 60#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 62#recFINAL assume true; 67#recEXIT >#31#return; 63#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 64#recFINAL assume true; 68#recEXIT >#33#return; 65#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 57#L29-3 [2021-08-27 14:35:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:04,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2021-08-27 14:35:04,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:04,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92775203] [2021-08-27 14:35:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:04,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:04,183 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:04,193 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:04,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:04,200 INFO L82 PathProgramCache]: Analyzing trace with hash 198344305, now seen corresponding path program 1 times [2021-08-27 14:35:04,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:04,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203754910] [2021-08-27 14:35:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:04,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:04,232 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:04,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:04,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:04,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1849555021, now seen corresponding path program 1 times [2021-08-27 14:35:04,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:04,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340149493] [2021-08-27 14:35:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:04,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 14:35:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:35:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 14:35:04,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:35:04,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340149493] [2021-08-27 14:35:04,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340149493] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:35:04,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977947705] [2021-08-27 14:35:04,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:04,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 14:35:04,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:04,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 14:35:04,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-27 14:35:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:04,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 14:35:04,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:04,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-08-27 14:35:04,574 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 42 treesize of output 34 [2021-08-27 14:35:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 14:35:04,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977947705] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:35:04,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 14:35:04,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-08-27 14:35:04,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844585255] [2021-08-27 14:35:05,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:35:05,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 14:35:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-08-27 14:35:05,697 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 14:35:05,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:35:05,789 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-08-27 14:35:05,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 14:35:05,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2021-08-27 14:35:05,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:35:05,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 19 transitions. [2021-08-27 14:35:05,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-08-27 14:35:05,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-27 14:35:05,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2021-08-27 14:35:05,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:35:05,796 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-08-27 14:35:05,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2021-08-27 14:35:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-08-27 14:35:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 14:35:05,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-08-27 14:35:05,801 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-08-27 14:35:05,801 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-08-27 14:35:05,801 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:35:05,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2021-08-27 14:35:05,802 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:35:05,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:35:05,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:35:05,802 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:35:05,802 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-08-27 14:35:05,803 INFO L791 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 169#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 170#L29-3 [2021-08-27 14:35:05,803 INFO L793 eck$LassoCheckResult]: Loop: 170#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 171#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 173#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 179#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 172#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 174#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 179#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 172#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 174#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 179#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 172#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 175#recFINAL assume true; 180#recEXIT >#31#return; 176#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 177#recFINAL assume true; 184#recEXIT >#31#return; 182#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 183#recFINAL assume true; 181#recEXIT >#33#return; 178#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 170#L29-3 [2021-08-27 14:35:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:05,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 3 times [2021-08-27 14:35:05,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:05,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991192361] [2021-08-27 14:35:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:05,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:05,809 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:05,818 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1148543297, now seen corresponding path program 2 times [2021-08-27 14:35:05,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:05,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056203776] [2021-08-27 14:35:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:05,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:05,837 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:05,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:05,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:05,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1421169023, now seen corresponding path program 2 times [2021-08-27 14:35:05,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:05,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106063142] [2021-08-27 14:35:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:05,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:05,890 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:05,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:07,792 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:35:07,793 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:35:07,793 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:35:07,793 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:35:07,793 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:35:07,793 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:07,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:35:07,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:35:07,794 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex9.i_Iteration3_Lasso [2021-08-27 14:35:07,794 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:35:07,794 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:35:07,805 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 14:35:07,809 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 14:35:07,810 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 14:35:07,812 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 14:35:07,814 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 14:35:07,815 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 14:35:07,818 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 14:35:07,820 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 14:35:07,822 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 14:35:07,824 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 14:35:07,825 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 14:35:07,965 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 14:35:07,967 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 14:35:07,969 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 14:35:07,971 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 14:35:07,973 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 14:35:07,974 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 14:35:08,328 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:35:08,331 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:35:08,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,341 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 14:35:08,342 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 14:35:08,343 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 14:35:08,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,371 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 14:35:08,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,372 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 14:35:08,373 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 14:35:08,376 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 14:35:08,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,406 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 14:35:08,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,408 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 14:35:08,408 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 14:35:08,410 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 14:35:08,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,436 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 14:35:08,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,437 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 14:35:08,438 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 14:35:08,439 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 14:35:08,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:08,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,505 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 14:35:08,518 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 14:35:08,520 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 14:35:08,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,554 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 14:35:08,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,556 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 14:35:08,557 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 14:35:08,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:08,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:08,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:08,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,594 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 14:35:08,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,595 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 14:35:08,597 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 14:35:08,597 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 14:35:08,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:08,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:08,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,629 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 14:35:08,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,630 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 14:35:08,636 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 14:35:08,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:08,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,662 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 14:35:08,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,664 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 14:35:08,665 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 14:35:08,666 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 14:35:08,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,692 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 14:35:08,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,693 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 14:35:08,695 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 14:35:08,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:08,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:08,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:08,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:08,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,721 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 14:35:08,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,724 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 14:35:08,725 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 14:35:08,725 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 14:35:08,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:08,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:08,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-08-27 14:35:08,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,769 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 14:35:08,769 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 14:35:08,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:08,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,778 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-08-27 14:35:08,778 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-08-27 14:35:08,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,808 INFO L401 nArgumentSynthesizer]: We have 72 Motzkin's Theorem applications. [2021-08-27 14:35:08,809 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-08-27 14:35:08,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:08,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,869 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 14:35:08,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:08,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:08,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:08,896 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 14:35:08,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:08,916 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 14:35:08,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,917 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 14:35:08,920 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 14:35:08,920 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 14:35:08,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:08,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:08,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:08,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:08,930 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:08,930 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:08,948 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:35:08,957 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-08-27 14:35:08,957 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-08-27 14:35:08,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:08,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:08,960 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 14:35:09,007 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 14:35:09,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:35:09,044 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:35:09,044 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:35:09,044 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1 Supporting invariants [] [2021-08-27 14:35:09,062 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 14:35:09,073 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-08-27 14:35:09,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:09,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:35:09,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:09,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 41 conjunts are in the unsatisfiable core [2021-08-27 14:35:09,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:09,204 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-08-27 14:35:09,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 31 [2021-08-27 14:35:09,355 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 14:35:10,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-08-27 14:35:11,405 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 14:35:11,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2021-08-27 14:35:11,608 INFO L354 Elim1Store]: treesize reduction 36, result has 54.4 percent of original size [2021-08-27 14:35:11,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 91 [2021-08-27 14:35:12,499 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 14:35:12,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-08-27 14:35:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 14:35:12,560 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 15 loop predicates [2021-08-27 14:35:12,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 14:35:29,180 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 65 states and 74 transitions. Complement of second has 37 states. [2021-08-27 14:35:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-08-27 14:35:29,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 14:35:29,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-08-27 14:35:29,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 16 transitions. Stem has 2 letters. Loop has 20 letters. [2021-08-27 14:35:29,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:35:29,183 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 14:35:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:29,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:35:29,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:29,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 42 conjunts are in the unsatisfiable core [2021-08-27 14:35:29,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:29,301 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-08-27 14:35:29,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 31 [2021-08-27 14:35:42,411 INFO L354 Elim1Store]: treesize reduction 56, result has 29.1 percent of original size [2021-08-27 14:35:42,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 84 [2021-08-27 14:35:42,430 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-08-27 14:35:42,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 83 [2021-08-27 14:35:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 3 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 14:35:43,086 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 13 loop predicates [2021-08-27 14:35:43,086 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 14:36:09,238 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 69 states and 79 transitions. Complement of second has 33 states. [2021-08-27 14:36:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 1 stem states 9 non-accepting loop states 1 accepting loop states [2021-08-27 14:36:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 14:36:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2021-08-27 14:36:09,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 18 transitions. Stem has 2 letters. Loop has 20 letters. [2021-08-27 14:36:09,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:09,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 18 transitions. Stem has 22 letters. Loop has 20 letters. [2021-08-27 14:36:09,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:09,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 18 transitions. Stem has 2 letters. Loop has 40 letters. [2021-08-27 14:36:09,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:09,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 79 transitions. [2021-08-27 14:36:09,243 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-08-27 14:36:09,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 52 states and 62 transitions. [2021-08-27 14:36:09,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-08-27 14:36:09,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-08-27 14:36:09,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 62 transitions. [2021-08-27 14:36:09,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:36:09,245 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-08-27 14:36:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 62 transitions. [2021-08-27 14:36:09,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-08-27 14:36:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 38 states have internal predecessors, (40), 8 states have call successors, (8), 5 states have call predecessors, (8), 9 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2021-08-27 14:36:09,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2021-08-27 14:36:09,250 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-08-27 14:36:09,250 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-08-27 14:36:09,250 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 14:36:09,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 62 transitions. [2021-08-27 14:36:09,251 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-08-27 14:36:09,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:36:09,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:36:09,251 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:36:09,251 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:36:09,252 INFO L791 eck$LassoCheckResult]: Stem: 605#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 606#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 628#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 604#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 623#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 651#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 649#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 609#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 621#recENTRY [2021-08-27 14:36:09,252 INFO L793 eck$LassoCheckResult]: Loop: 621#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 607#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 608#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 621#recENTRY [2021-08-27 14:36:09,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:09,252 INFO L82 PathProgramCache]: Analyzing trace with hash -15910302, now seen corresponding path program 1 times [2021-08-27 14:36:09,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:09,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922450052] [2021-08-27 14:36:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:09,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:09,260 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:09,267 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:09,267 INFO L82 PathProgramCache]: Analyzing trace with hash 29945, now seen corresponding path program 1 times [2021-08-27 14:36:09,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:09,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324091125] [2021-08-27 14:36:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:09,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:09,271 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:09,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:09,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:09,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1537404168, now seen corresponding path program 2 times [2021-08-27 14:36:09,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:09,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93979225] [2021-08-27 14:36:09,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:09,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:09,281 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:09,289 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:11,120 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:36:11,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:36:11,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:36:11,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:36:11,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:36:11,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:36:11,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:36:11,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex9.i_Iteration4_Lasso [2021-08-27 14:36:11,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:36:11,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:36:11,122 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 14:36:11,126 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 14:36:11,127 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 14:36:11,130 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 14:36:11,132 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 14:36:11,133 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 14:36:11,135 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 14:36:11,136 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 14:36:11,139 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 14:36:11,141 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 14:36:11,143 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 14:36:11,144 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 14:36:11,146 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 14:36:11,148 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 14:36:11,149 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 14:36:11,151 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 14:36:11,153 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 14:36:11,155 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 14:36:11,156 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 14:36:11,158 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 14:36:11,159 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 14:36:11,164 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 14:36:11,167 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 14:36:11,270 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 14:36:11,272 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 14:36:11,276 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 14:36:11,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:11,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:11,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:11,284 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 14:36:11,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:11,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:36:11,684 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:36:11,684 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:36:11,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,690 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 14:36:11,690 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 14:36:11,691 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 14:36:11,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,717 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 14:36:11,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,718 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 14:36:11,719 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 14:36:11,720 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 14:36:11,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:11,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,742 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 14:36:11,744 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 14:36:11,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:36:11,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,766 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 14:36:11,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,767 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 14:36:11,768 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 14:36:11,769 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 14:36:11,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-08-27 14:36:11,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,790 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 14:36:11,793 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 14:36:11,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:36:11,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,817 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 14:36:11,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,818 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 14:36:11,819 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 14:36:11,820 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 14:36:11,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,843 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 14:36:11,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,844 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 14:36:11,845 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 14:36:11,846 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 14:36:11,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,873 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 14:36:11,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,874 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 14:36:11,876 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 14:36:11,878 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 14:36:11,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:11,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:11,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,911 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 14:36:11,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,912 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 14:36:11,913 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 14:36:11,914 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 14:36:11,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,937 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 14:36:11,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,938 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 14:36:11,938 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 14:36:11,940 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 14:36:11,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,963 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 14:36:11,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,964 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 14:36:11,968 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 14:36:11,968 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 14:36:11,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:11,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:11,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:11,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:11,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:11,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:11,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:11,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:11,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:11,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:11,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:11,992 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 14:36:11,993 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 14:36:11,994 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 14:36:12,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-08-27 14:36:12,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,018 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 14:36:12,019 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 14:36:12,020 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 14:36:12,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,044 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 14:36:12,045 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,045 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 14:36:12,046 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 14:36:12,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:36:12,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,070 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 14:36:12,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,074 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 14:36:12,075 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 14:36:12,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:36:12,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,099 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 14:36:12,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,100 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 14:36:12,100 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 14:36:12,102 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 14:36:12,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:12,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,129 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 14:36:12,131 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 14:36:12,134 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 14:36:12,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:12,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,159 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 14:36:12,160 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 14:36:12,162 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 14:36:12,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:12,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,195 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 14:36:12,195 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 14:36:12,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:36:12,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,219 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 14:36:12,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,220 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 14:36:12,221 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 14:36:12,222 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 14:36:12,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,257 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 14:36:12,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,258 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 14:36:12,258 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 14:36:12,259 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 14:36:12,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,282 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 14:36:12,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,283 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:12,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-27 14:36:12,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:36:12,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:12,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,338 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:12,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-27 14:36:12,339 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 14:36:12,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-08-27 14:36:12,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,367 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:12,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-27 14:36:12,374 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 14:36:12,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:36:12,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:36:12,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:36:12,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-08-27 14:36:12,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,399 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:12,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-27 14:36:12,401 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 14:36:12,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:36:12,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:36:12,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:36:12,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:36:12,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:36:12,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:36:12,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:36:12,409 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:36:12,410 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 14:36:12,411 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 14:36:12,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:36:12,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:12,411 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:36:12,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-27 14:36:12,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:36:12,413 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 14:36:12,414 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:36:12,414 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~i) = 2*rec_#in~i + 1 Supporting invariants [] [2021-08-27 14:36:12,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:12,431 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-08-27 14:36:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:12,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 14:36:12,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:36:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:12,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 14:36:12,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:36:12,550 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 14:36:12,551 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 14:36:12,551 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 62 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:36:12,610 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 62 transitions. cyclomatic complexity: 15. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 98 states and 123 transitions. Complement of second has 13 states. [2021-08-27 14:36:12,612 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 14:36:12,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:36:12,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-08-27 14:36:12,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 8 letters. Loop has 3 letters. [2021-08-27 14:36:12,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:12,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 3 letters. [2021-08-27 14:36:12,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:12,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 8 letters. Loop has 6 letters. [2021-08-27 14:36:12,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:36:12,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 123 transitions. [2021-08-27 14:36:12,616 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-08-27 14:36:12,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 78 states and 100 transitions. [2021-08-27 14:36:12,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-08-27 14:36:12,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-08-27 14:36:12,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 100 transitions. [2021-08-27 14:36:12,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:36:12,623 INFO L681 BuchiCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-08-27 14:36:12,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 100 transitions. [2021-08-27 14:36:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-08-27 14:36:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 58 states have internal predecessors, (58), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (27), 8 states have call predecessors, (27), 15 states have call successors, (27) [2021-08-27 14:36:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2021-08-27 14:36:12,635 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-08-27 14:36:12,635 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-08-27 14:36:12,635 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 14:36:12,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 100 transitions. [2021-08-27 14:36:12,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-08-27 14:36:12,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:36:12,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:36:12,641 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-08-27 14:36:12,642 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:36:12,642 INFO L791 eck$LassoCheckResult]: Stem: 826#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 827#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 820#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 821#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 833#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 853#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 832#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 834#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 893#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 890#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 856#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 894#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 891#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 857#recFINAL assume true; 855#recEXIT >#31#return; 839#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 842#recFINAL assume true; 872#recEXIT >#31#return; 868#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 867#recFINAL assume true; 863#recEXIT >#33#return; 845#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 823#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 825#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 859#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 886#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 885#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 836#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 877#recENTRY [2021-08-27 14:36:12,642 INFO L793 eck$LassoCheckResult]: Loop: 877#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 882#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 837#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 877#recENTRY [2021-08-27 14:36:12,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:12,643 INFO L82 PathProgramCache]: Analyzing trace with hash -892002912, now seen corresponding path program 3 times [2021-08-27 14:36:12,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:12,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120282] [2021-08-27 14:36:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:12,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:12,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 14:36:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:12,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:36:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:12,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-08-27 14:36:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:36:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:36:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 14:36:13,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:36:13,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120282] [2021-08-27 14:36:13,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120282] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:36:13,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090712059] [2021-08-27 14:36:13,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 14:36:13,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 14:36:13,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:36:13,121 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 14:36:13,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-08-27 14:36:13,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-27 14:36:13,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 14:36:13,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 31 conjunts are in the unsatisfiable core [2021-08-27 14:36:13,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:36:13,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-08-27 14:36:13,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 17 [2021-08-27 14:36:17,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2021-08-27 14:36:31,003 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 14:36:31,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-08-27 14:36:31,203 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-08-27 14:36:31,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 56 [2021-08-27 14:36:31,417 INFO L354 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2021-08-27 14:36:31,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 68 [2021-08-27 14:36:32,110 INFO L354 Elim1Store]: treesize reduction 25, result has 32.4 percent of original size [2021-08-27 14:36:32,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 79 [2021-08-27 14:36:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 6 refuted. 2 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-27 14:36:32,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090712059] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:36:32,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 14:36:32,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-08-27 14:36:32,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467397335] [2021-08-27 14:36:32,216 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:36:32,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:36:32,216 INFO L82 PathProgramCache]: Analyzing trace with hash 29945, now seen corresponding path program 2 times [2021-08-27 14:36:32,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:36:32,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617631335] [2021-08-27 14:36:32,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:36:32,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:36:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:32,220 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:36:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:36:32,222 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:36:32,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:36:32,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-27 14:36:32,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=568, Unknown=6, NotChecked=0, Total=650 [2021-08-27 14:36:32,497 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. cyclomatic complexity: 28 Second operand has 26 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 21 states have internal predecessors, (34), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2021-08-27 14:37:16,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:37:16,105 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2021-08-27 14:37:16,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 14:37:16,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 76 transitions. [2021-08-27 14:37:16,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:37:16,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 41 states and 51 transitions. [2021-08-27 14:37:16,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-08-27 14:37:16,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 14:37:16,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2021-08-27 14:37:16,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:37:16,108 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-08-27 14:37:16,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2021-08-27 14:37:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-27 14:37:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 30 states have internal predecessors, (30), 6 states have call successors, (6), 4 states have call predecessors, (6), 7 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2021-08-27 14:37:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2021-08-27 14:37:16,111 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-08-27 14:37:16,111 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-08-27 14:37:16,111 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 14:37:16,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2021-08-27 14:37:16,111 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:37:16,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:37:16,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:37:16,112 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:37:16,112 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-08-27 14:37:16,113 INFO L791 eck$LassoCheckResult]: Stem: 1122#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1123#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 1142#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1162#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1144#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1161#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1160#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1131#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1145#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1130#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1127#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1139#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1140#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1128#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1139#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1126#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1129#recFINAL assume true; 1159#recEXIT >#31#return; 1158#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1157#recFINAL assume true; 1154#recEXIT >#31#return; 1152#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1151#recFINAL assume true; 1150#recEXIT >#31#return; 1147#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1148#recFINAL assume true; 1146#recEXIT >#33#return; 1136#L33-1 [2021-08-27 14:37:16,113 INFO L793 eck$LassoCheckResult]: Loop: 1136#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 1124#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1125#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1133#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1134#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1137#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1138#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1143#recFINAL assume true; 1141#recEXIT >#31#return; 1132#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1135#recFINAL assume true; 1156#recEXIT >#31#return; 1155#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1153#recFINAL assume true; 1149#recEXIT >#31#return; 1147#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1148#recFINAL assume true; 1146#recEXIT >#31#return; 1147#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1148#recFINAL assume true; 1146#recEXIT >#33#return; 1136#L33-1 [2021-08-27 14:37:16,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:37:16,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1048585469, now seen corresponding path program 1 times [2021-08-27 14:37:16,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:37:16,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859172889] [2021-08-27 14:37:16,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:37:16,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:37:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:37:16,122 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:37:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:37:16,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:37:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:37:16,131 INFO L82 PathProgramCache]: Analyzing trace with hash -195458237, now seen corresponding path program 3 times [2021-08-27 14:37:16,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:37:16,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124049409] [2021-08-27 14:37:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:37:16,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:37:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:37:16,142 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:37:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:37:16,154 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:37:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:37:16,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2091065787, now seen corresponding path program 4 times [2021-08-27 14:37:16,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:37:16,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418023286] [2021-08-27 14:37:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:37:16,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:37:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:16,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 14:37:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:37:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:37:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:37:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-08-27 14:37:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:17,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:37:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:37:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:37:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:37:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:37:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 32 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-08-27 14:37:17,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:37:17,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418023286] [2021-08-27 14:37:17,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418023286] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:37:17,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168919647] [2021-08-27 14:37:17,560 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 14:37:17,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 14:37:17,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:37:17,567 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 14:37:17,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-08-27 14:37:17,791 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 14:37:17,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 14:37:17,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 58 conjunts are in the unsatisfiable core [2021-08-27 14:37:17,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:37:17,812 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 14:37:17,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-08-27 14:37:17,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 17 [2021-08-27 14:37:21,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-08-27 14:37:21,531 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-08-27 14:37:21,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2021-08-27 14:37:21,966 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-08-27 14:37:21,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 59 [2021-08-27 14:37:22,330 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-08-27 14:37:22,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 76 [2021-08-27 14:37:22,360 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-08-27 14:37:22,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 79 [2021-08-27 14:37:22,587 INFO L354 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2021-08-27 14:37:22,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 79 [2021-08-27 14:37:22,607 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-08-27 14:37:22,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 72 [2021-08-27 14:37:22,763 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-08-27 14:37:22,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 50 [2021-08-27 14:37:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 26 proven. 138 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-27 14:37:22,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168919647] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:37:22,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 14:37:22,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 45 [2021-08-27 14:37:22,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310209167] [2021-08-27 14:37:27,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:37:27,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-08-27 14:37:27,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1896, Unknown=2, NotChecked=0, Total=2070 [2021-08-27 14:37:27,538 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. cyclomatic complexity: 13 Second operand has 46 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 34 states have internal predecessors, (60), 14 states have call successors, (15), 4 states have call predecessors, (15), 13 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2021-08-27 14:37:53,773 WARN L207 SmtUtils]: Spent 24.09 s on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2021-08-27 14:38:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:38:07,699 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2021-08-27 14:38:07,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-27 14:38:07,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 77 transitions. [2021-08-27 14:38:07,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-08-27 14:38:07,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 45 states and 57 transitions. [2021-08-27 14:38:07,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-08-27 14:38:07,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-08-27 14:38:07,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 57 transitions. [2021-08-27 14:38:07,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:38:07,703 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2021-08-27 14:38:07,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 57 transitions. [2021-08-27 14:38:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2021-08-27 14:38:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 32 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2021-08-27 14:38:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-08-27 14:38:07,705 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-08-27 14:38:07,705 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-08-27 14:38:07,706 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-27 14:38:07,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 56 transitions. [2021-08-27 14:38:07,706 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-08-27 14:38:07,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:38:07,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:38:07,707 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:38:07,707 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-08-27 14:38:07,708 INFO L791 eck$LassoCheckResult]: Stem: 1623#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1624#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~nondet5, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem12, main_#t~mem6, main_~pp~0.base, main_~pp~0.offset, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;havoc main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;havoc main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet4;call write~int(main_#t~nondet5, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet5; 1625#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1626#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1643#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1648#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1647#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1632#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1646#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1631#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1628#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1641#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1642#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1629#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1641#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1642#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1629#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1641#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1627#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1630#recFINAL assume true; 1666#recEXIT >#31#return; 1665#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1664#recFINAL assume true; 1663#recEXIT >#31#return; 1662#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1660#recFINAL assume true; 1658#recEXIT >#31#return; 1656#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1655#recFINAL assume true; 1653#recEXIT >#31#return; 1652#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1654#recFINAL assume true; 1651#recEXIT >#33#return; 1637#L33-1 [2021-08-27 14:38:07,708 INFO L793 eck$LassoCheckResult]: Loop: 1637#L33-1 havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem12 := read~int(main_~pp~0.base, main_~pp~0.offset, 4);call write~int(main_#t~mem11 + main_#t~mem12, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem11;havoc main_#t~mem12; 1638#L29-3 call main_#t~mem6 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 1649#L29-1 assume !!(main_#t~mem6 > 1);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8;call main_#t~mem9 := read~int(main_~qq~0.base, main_~qq~0.offset, 4);call write~int(main_#t~mem9, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~mem9;call write~int(0, main_~qq~0.base, main_~qq~0.offset, 4);call main_#t~mem10 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 1634#L33 call rec(main_~pp~0.base, main_~pp~0.offset, main_#t~mem10);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 1635#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 1639#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 1640#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 1650#recFINAL assume true; 1644#recEXIT >#31#return; 1633#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1636#recFINAL assume true; 1645#recEXIT >#31#return; 1661#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1659#recFINAL assume true; 1657#recEXIT >#31#return; 1656#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1655#recFINAL assume true; 1653#recEXIT >#31#return; 1652#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 1654#recFINAL assume true; 1651#recEXIT >#33#return; 1637#L33-1 [2021-08-27 14:38:07,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:38:07,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1075606773, now seen corresponding path program 2 times [2021-08-27 14:38:07,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:38:07,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935986850] [2021-08-27 14:38:07,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:38:07,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:38:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:38:07,719 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:38:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:38:07,731 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:38:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:38:07,732 INFO L82 PathProgramCache]: Analyzing trace with hash -195458237, now seen corresponding path program 4 times [2021-08-27 14:38:07,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:38:07,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612501123] [2021-08-27 14:38:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:38:07,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:38:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:38:07,750 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:38:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:38:07,767 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:38:07,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:38:07,768 INFO L82 PathProgramCache]: Analyzing trace with hash 2001023031, now seen corresponding path program 5 times [2021-08-27 14:38:07,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:38:07,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980965355] [2021-08-27 14:38:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:38:07,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:38:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-08-27 14:38:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-08-27 14:38:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:08,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:09,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:09,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:38:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:38:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 32 proven. 140 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-08-27 14:38:09,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:38:09,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980965355] [2021-08-27 14:38:09,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980965355] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:38:09,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162594275] [2021-08-27 14:38:09,151 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 14:38:09,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 14:38:09,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:38:09,164 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 14:38:09,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-08-27 14:38:09,472 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 14:38:09,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 14:38:09,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 48 conjunts are in the unsatisfiable core [2021-08-27 14:38:09,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:38:09,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-08-27 14:38:09,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 17 [2021-08-27 14:39:54,131 WARN L207 SmtUtils]: Spent 11.25 s on a formula simplification that was a NOOP. DAG size: 18 [2021-08-27 14:39:54,282 INFO L354 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2021-08-27 14:39:54,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 51 [2021-08-27 14:39:56,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 14:39:56,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 14:39:56,213 INFO L354 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2021-08-27 14:39:56,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 55 [2021-08-27 14:39:57,783 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-08-27 14:39:57,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 55 [2021-08-27 14:39:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 35 proven. 160 refuted. 6 times theorem prover too weak. 38 trivial. 0 not checked. [2021-08-27 14:39:58,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162594275] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:39:58,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 14:39:58,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 36 [2021-08-27 14:39:58,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261958691] [2021-08-27 14:40:02,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:40:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-27 14:40:02,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1183, Unknown=25, NotChecked=0, Total=1332 [2021-08-27 14:40:02,907 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. cyclomatic complexity: 15 Second operand has 37 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 32 states have internal predecessors, (58), 11 states have call successors, (12), 3 states have call predecessors, (12), 15 states have return successors, (19), 15 states have call predecessors, (19), 11 states have call successors, (19) [2021-08-27 14:42:09,257 WARN L224 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-08-27 14:42:09,258 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:174) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:256) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.callSuccessors(TotalizeNwa.java:260) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.callSuccessors(ComplementDeterministicNwa.java:131) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:252) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:244) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addCallsAndSuccessors(NestedWordAutomatonReachableStates.java:1082) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:961) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:950) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:530) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:235) ... 47 more [2021-08-27 14:42:09,261 INFO L168 Benchmark]: Toolchain (without parser) took 426225.45 ms. Allocated memory was 48.2 MB in the beginning and 157.3 MB in the end (delta: 109.1 MB). Free memory was 24.1 MB in the beginning and 98.0 MB in the end (delta: -73.9 MB). Peak memory consumption was 106.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:42:09,261 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 48.2 MB. Free memory was 30.7 MB in the beginning and 30.6 MB in the end (delta: 45.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:42:09,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.54 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 36.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:42:09,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.26 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 42.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:42:09,262 INFO L168 Benchmark]: Boogie Preprocessor took 33.26 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 41.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:42:09,262 INFO L168 Benchmark]: RCFGBuilder took 330.77 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 40.8 MB in the end (delta: 426.5 kB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-08-27 14:42:09,262 INFO L168 Benchmark]: BuchiAutomizer took 425633.19 ms. Allocated memory was 58.7 MB in the beginning and 157.3 MB in the end (delta: 98.6 MB). Free memory was 40.5 MB in the beginning and 98.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 16.1 GB. [2021-08-27 14:42:09,263 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 48.2 MB. Free memory was 30.7 MB in the beginning and 30.6 MB in the end (delta: 45.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 183.54 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 36.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.26 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 42.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.26 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 41.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 330.77 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 40.8 MB in the end (delta: 426.5 kB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 425633.19 ms. Allocated memory was 58.7 MB in the beginning and 157.3 MB in the end (delta: 98.6 MB). Free memory was 40.5 MB in the beginning and 98.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) [2021-08-27 14:42:09,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 101 RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-27 14:42:09,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-08-27 14:42:09,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-08-27 14:42:09,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-08-27 14:42:09,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 Received shutdown request...