./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer --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 b38ec4f461710d1db3d0a9a3fa7176d30b2ef06a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:01:17,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:01:17,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:01:17,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:01:17,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:01:17,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:01:17,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:01:17,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:01:17,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:01:17,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:01:17,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:01:17,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:01:17,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:01:17,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:01:17,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:01:17,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:01:17,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:01:17,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:01:17,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:01:17,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:01:17,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:01:17,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:01:17,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:01:17,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:01:17,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:01:17,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:01:17,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:01:17,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:01:17,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:01:17,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:01:17,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:01:17,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:01:17,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:01:17,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:01:17,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:01:17,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:01:17,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:01:17,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:01:17,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:01:17,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:01:17,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:01:17,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 11:01:17,464 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:01:17,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:01:17,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:01:17,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:01:17,466 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:01:17,466 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 11:01:17,466 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 11:01:17,467 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 11:01:17,467 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 11:01:17,467 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 11:01:17,467 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 11:01:17,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:01:17,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:01:17,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:01:17,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:01:17,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 11:01:17,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 11:01:17,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 11:01:17,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:01:17,469 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 11:01:17,469 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:01:17,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 11:01:17,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:01:17,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:01:17,470 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 11:01:17,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:01:17,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:01:17,471 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 11:01:17,471 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 11:01:17,472 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer 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 -> b38ec4f461710d1db3d0a9a3fa7176d30b2ef06a [2019-11-20 11:01:17,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:01:17,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:01:17,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:01:17,633 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:01:17,634 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:01:17,634 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i [2019-11-20 11:01:17,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/data/5209181bd/99bde75d72aa46f9bf16c4f2f6423564/FLAG3784536e8 [2019-11-20 11:01:18,168 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:01:18,168 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/sv-benchmarks/c/termination-memory-alloca/a.08-alloca.i [2019-11-20 11:01:18,181 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/data/5209181bd/99bde75d72aa46f9bf16c4f2f6423564/FLAG3784536e8 [2019-11-20 11:01:18,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/data/5209181bd/99bde75d72aa46f9bf16c4f2f6423564 [2019-11-20 11:01:18,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:01:18,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:01:18,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:01:18,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:01:18,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:01:18,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:18" (1/1) ... [2019-11-20 11:01:18,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42da556a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:18, skipping insertion in model container [2019-11-20 11:01:18,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:18" (1/1) ... [2019-11-20 11:01:18,672 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:01:18,714 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:01:19,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:01:19,029 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:01:19,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:01:19,129 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:01:19,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19 WrapperNode [2019-11-20 11:01:19,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:01:19,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:01:19,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:01:19,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:01:19,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:01:19,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:01:19,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:01:19,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:01:19,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... [2019-11-20 11:01:19,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:01:19,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:01:19,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:01:19,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:01:19,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 11:01:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 11:01:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:01:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:01:19,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:01:19,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:01:19,565 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:01:19,565 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 11:01:19,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:19 BoogieIcfgContainer [2019-11-20 11:01:19,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:01:19,567 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 11:01:19,567 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 11:01:19,570 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 11:01:19,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:01:19,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:01:18" (1/3) ... [2019-11-20 11:01:19,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10280958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:01:19, skipping insertion in model container [2019-11-20 11:01:19,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:01:19,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:19" (2/3) ... [2019-11-20 11:01:19,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10280958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:01:19, skipping insertion in model container [2019-11-20 11:01:19,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 11:01:19,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:19" (3/3) ... [2019-11-20 11:01:19,575 INFO L371 chiAutomizerObserver]: Analyzing ICFG a.08-alloca.i [2019-11-20 11:01:19,623 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 11:01:19,624 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 11:01:19,624 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 11:01:19,624 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:01:19,624 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:01:19,624 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 11:01:19,625 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:01:19,625 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 11:01:19,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-20 11:01:19,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:01:19,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:01:19,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:01:19,663 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 11:01:19,664 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:01:19,664 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 11:01:19,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-20 11:01:19,665 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:01:19,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:01:19,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:01:19,666 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 11:01:19,666 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:01:19,673 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~ret14;test_fun_#in~x, test_fun_#in~y := main_#t~nondet12, main_#t~nondet13;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem11, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 8#L555-5true [2019-11-20 11:01:19,673 INFO L796 eck$LassoCheckResult]: Loop: 8#L555-5true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 11#L555-1true assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 2147483647; 5#L555-3true assume !!test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem9, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 + test_fun_#t~mem10, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem10; 8#L555-5true [2019-11-20 11:01:19,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:19,678 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-20 11:01:19,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:01:19,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69941018] [2019-11-20 11:01:19,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:01:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:19,833 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:01:19,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:19,834 INFO L82 PathProgramCache]: Analyzing trace with hash 36846, now seen corresponding path program 1 times [2019-11-20 11:01:19,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:01:19,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742097885] [2019-11-20 11:01:19,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:01:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:19,868 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:01:19,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:19,870 INFO L82 PathProgramCache]: Analyzing trace with hash 28695788, now seen corresponding path program 1 times [2019-11-20 11:01:19,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:01:19,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021091825] [2019-11-20 11:01:19,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:01:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:19,944 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:01:20,125 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-11-20 11:01:20,737 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2019-11-20 11:01:20,890 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-11-20 11:01:20,903 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 11:01:20,903 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 11:01:20,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 11:01:20,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 11:01:20,904 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 11:01:20,904 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:20,904 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 11:01:20,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 11:01:20,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.08-alloca.i_Iteration1_Lasso [2019-11-20 11:01:20,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 11:01:20,905 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 11:01:20,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:20,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:21,374 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-11-20 11:01:21,547 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-20 11:01:21,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:21,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:21,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:21,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:21,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:21,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:21,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 11:01:22,220 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 11:01:22,232 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:01:22,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:01:22,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,279 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:01:22,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:01:22,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,288 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:01:22,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:01:22,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:01:22,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:01:22,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:01:22,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:01:22,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:01:22,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 11:01:22,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 11:01:22,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 11:01:22,439 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:01:22,439 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:01:22,444 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 11:01:22,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 11:01:22,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 11:01:22,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 11:01:22,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 11:01:22,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 11:01:22,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 11:01:22,505 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 11:01:22,613 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-20 11:01:22,613 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5cfc273d-7e9c-4494-b2ca-a45261e5cb99/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 11:01:22,674 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 11:01:22,679 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 11:01:22,679 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 11:01:22,680 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1 + 2147483646 Supporting invariants [] [2019-11-20 11:01:22,752 INFO L297 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2019-11-20 11:01:22,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-20 11:01:22,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:01:22,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 11:01:22,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:01:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:01:22,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:01:22,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:01:22,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:01:22,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 11:01:22,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:01:22,923 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 [2019-11-20 11:01:22,924 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2019-11-20 11:01:23,018 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 38 states and 44 transitions. Complement of second has 9 states. [2019-11-20 11:01:23,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 11:01:23,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 11:01:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2019-11-20 11:01:23,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-20 11:01:23,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:01:23,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 11:01:23,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:01:23,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-20 11:01:23,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 11:01:23,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 44 transitions. [2019-11-20 11:01:23,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:01:23,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 12 states and 15 transitions. [2019-11-20 11:01:23,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-20 11:01:23,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 11:01:23,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-11-20 11:01:23,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 11:01:23,040 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 11:01:23,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-11-20 11:01:23,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-20 11:01:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 11:01:23,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-11-20 11:01:23,071 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-20 11:01:23,071 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-20 11:01:23,072 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 11:01:23,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-11-20 11:01:23,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 11:01:23,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 11:01:23,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 11:01:23,074 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 11:01:23,075 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 11:01:23,075 INFO L794 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 174#L-1 havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~ret14;test_fun_#in~x, test_fun_#in~y := main_#t~nondet12, main_#t~nondet13;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem11, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 175#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 181#L555-1 [2019-11-20 11:01:23,075 INFO L796 eck$LassoCheckResult]: Loop: 181#L555-1 assume !test_fun_#t~short8; 177#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(1 + test_fun_#t~mem9, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 + test_fun_#t~mem10, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem10; 178#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 181#L555-1 [2019-11-20 11:01:23,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:23,075 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-11-20 11:01:23,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:01:23,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940215370] [2019-11-20 11:01:23,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:01:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:01:23,190 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:01:23,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:01:23,191 INFO L82 PathProgramCache]: Analyzing trace with hash 41888, now seen corresponding path program 1 times [2019-11-20 11:01:23,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:01:23,191 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639260229] [2019-11-20 11:01:23,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:01:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:01:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:01:23,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639260229] [2019-11-20 11:01:23,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:01:23,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 11:01:23,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802691281] [2019-11-20 11:01:23,250 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 11:01:23,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:01:23,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 11:01:23,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 11:01:23,255 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 11:01:23,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:01:23,273 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-20 11:01:23,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:01:23,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2019-11-20 11:01:23,275 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:01:23,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2019-11-20 11:01:23,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 11:01:23,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 11:01:23,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 11:01:23,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 11:01:23,276 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:01:23,276 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:01:23,276 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:01:23,276 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 11:01:23,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:01:23,276 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 11:01:23,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 11:01:23,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:01:23 BoogieIcfgContainer [2019-11-20 11:01:23,283 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 11:01:23,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:01:23,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:01:23,284 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:01:23,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:19" (3/4) ... [2019-11-20 11:01:23,288 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:01:23,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:01:23,290 INFO L168 Benchmark]: Toolchain (without parser) took 4632.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -99.2 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:23,290 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:23,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -213.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:23,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:23,292 INFO L168 Benchmark]: Boogie Preprocessor took 62.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:01:23,293 INFO L168 Benchmark]: RCFGBuilder took 330.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:23,294 INFO L168 Benchmark]: BuchiAutomizer took 3716.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.7 MB). Peak memory consumption was 90.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:01:23,294 INFO L168 Benchmark]: Witness Printer took 4.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-20 11:01:23,298 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 471.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 938.0 MB in the beginning and 1.2 GB in the end (delta: -213.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 330.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3716.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 90.7 MB). Peak memory consumption was 90.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[y_ref][y_ref] + 2147483646 and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 10 SDslu, 10 SDs, 0 SdLazy, 23 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital285 mio100 ax106 hnf100 lsp92 ukn56 mio100 lsp36 div100 bol100 ite100 ukn100 eq198 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...