./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrncmp_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrncmp_reverse_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/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 8c3f97134e9515d2321e7dd3fb923e4cafdb92aa .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:39:44,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:39:44,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:39:44,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:39:44,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:39:44,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:39:44,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:39:44,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:39:44,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:39:44,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:39:44,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:39:44,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:39:44,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:39:44,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:39:44,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:39:44,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:39:44,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:39:44,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:39:44,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:39:44,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:39:44,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:39:44,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:39:44,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:39:44,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:39:44,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:39:44,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:39:44,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:39:44,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:39:44,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:39:44,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:39:44,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:39:44,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:39:44,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:39:44,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:39:44,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:39:44,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:39:44,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:39:44,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:39:44,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:39:44,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:39:44,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:39:44,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:39:44,561 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:39:44,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:39:44,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:39:44,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:39:44,564 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:39:44,564 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:39:44,565 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:39:44,565 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:39:44,565 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:39:44,565 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:39:44,566 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:39:44,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:39:44,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:39:44,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:39:44,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:39:44,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:39:44,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:39:44,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:39:44,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:39:44,568 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:39:44,569 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:39:44,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:39:44,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:39:44,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:39:44,570 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:39:44,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:39:44,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:39:44,571 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:39:44,572 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:39:44,572 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_bc4ce9a3-4393-407d-b125-026870d91d81/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 -> 8c3f97134e9515d2321e7dd3fb923e4cafdb92aa [2019-11-15 20:39:44,605 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:39:44,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:39:44,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:39:44,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:39:44,632 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:39:44,633 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrncmp_reverse_alloca.i [2019-11-15 20:39:44,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/data/4d6076728/f43a648fa90646d298c2a5682f4eceef/FLAGdeaa0e4ec [2019-11-15 20:39:45,202 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:39:45,202 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/sv-benchmarks/c/termination-15/cstrncmp_reverse_alloca.i [2019-11-15 20:39:45,217 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/data/4d6076728/f43a648fa90646d298c2a5682f4eceef/FLAGdeaa0e4ec [2019-11-15 20:39:45,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/bin/uautomizer/data/4d6076728/f43a648fa90646d298c2a5682f4eceef [2019-11-15 20:39:45,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:39:45,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:39:45,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:39:45,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:39:45,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:39:45,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:39:45" (1/1) ... [2019-11-15 20:39:45,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7d5d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:45, skipping insertion in model container [2019-11-15 20:39:45,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:39:45" (1/1) ... [2019-11-15 20:39:45,565 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:39:45,612 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:39:46,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:39:46,068 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:39:46,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:39:46,196 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:39:46,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46 WrapperNode [2019-11-15 20:39:46,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:39:46,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:39:46,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:39:46,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:39:46,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:39:46,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:39:46,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:39:46,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:39:46,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... [2019-11-15 20:39:46,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:39:46,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:39:46,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:39:46,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:39:46,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc4ce9a3-4393-407d-b125-026870d91d81/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 [2019-11-15 20:39:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:39:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:39:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:39:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:39:46,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:39:46,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:39:46,657 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:39:46,657 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 20:39:46,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:46 BoogieIcfgContainer [2019-11-15 20:39:46,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:39:46,659 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:39:46,659 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:39:46,663 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:39:46,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:39:46,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:39:45" (1/3) ... [2019-11-15 20:39:46,665 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a27d6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:39:46, skipping insertion in model container [2019-11-15 20:39:46,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:39:46,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:39:46" (2/3) ... [2019-11-15 20:39:46,666 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a27d6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:39:46, skipping insertion in model container [2019-11-15 20:39:46,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:39:46,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:46" (3/3) ... [2019-11-15 20:39:46,668 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncmp_reverse_alloca.i [2019-11-15 20:39:46,732 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:39:46,732 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:39:46,732 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:39:46,732 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:39:46,733 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:39:46,733 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:39:46,733 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:39:46,733 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:39:46,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-15 20:39:46,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-15 20:39:46,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:39:46,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:39:46,803 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:39:46,804 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-15 20:39:46,804 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:39:46,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-15 20:39:46,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-15 20:39:46,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:39:46,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:39:46,808 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:39:46,808 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-15 20:39:46,817 INFO L791 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#L-1true havoc main_#res;havoc main_#t~nondet216, main_#t~nondet217, main_#t~malloc218.base, main_#t~malloc218.offset, main_#t~malloc219.base, main_#t~malloc219.offset, main_#t~nondet220, main_#t~ret221, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet216;havoc main_#t~nondet216;main_~length2~0 := main_#t~nondet217;havoc main_#t~nondet217; 12#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 9#L385-1true call main_#t~malloc218.base, main_#t~malloc218.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc218.base, main_#t~malloc218.offset;call main_#t~malloc219.base, main_#t~malloc219.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc219.base, main_#t~malloc219.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet220;havoc cstrncmp_#res;havoc cstrncmp_#t~mem209, cstrncmp_#t~short210, cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset, cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset, cstrncmp_#t~post205, cstrncmp_#t~mem206, cstrncmp_#t~mem207, cstrncmp_#t~short208, cstrncmp_#t~mem213, cstrncmp_#t~mem214, cstrncmp_#t~ite215, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 20#L367true assume !(0 == cstrncmp_~n); 6#L369-5true [2019-11-15 20:39:46,818 INFO L793 eck$LassoCheckResult]: Loop: 6#L369-5true cstrncmp_#t~post205 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post205 - 1;cstrncmp_#t~short208 := cstrncmp_#t~post205 > 0; 17#L369-1true assume cstrncmp_#t~short208;call cstrncmp_#t~mem206 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem207 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short208 := cstrncmp_#t~mem206 == cstrncmp_#t~mem207; 4#L369-3true assume !!cstrncmp_#t~short208;havoc cstrncmp_#t~mem207;havoc cstrncmp_#t~post205;havoc cstrncmp_#t~short208;havoc cstrncmp_#t~mem206;cstrncmp_#t~short210 := 0 == cstrncmp_~n; 14#L370true assume cstrncmp_#t~short210; 19#L370-2true assume !cstrncmp_#t~short210;havoc cstrncmp_#t~short210;havoc cstrncmp_#t~mem209;cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset - 1;havoc cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset;cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset - 1;havoc cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset; 6#L369-5true [2019-11-15 20:39:46,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:46,825 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 1 times [2019-11-15 20:39:46,833 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:39:46,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676776638] [2019-11-15 20:39:46,833 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:46,834 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:46,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:39:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:47,016 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:39:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:47,018 INFO L82 PathProgramCache]: Analyzing trace with hash 52587176, now seen corresponding path program 1 times [2019-11-15 20:39:47,018 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:39:47,018 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614124813] [2019-11-15 20:39:47,018 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,019 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:39:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:39:47,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:39:47,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614124813] [2019-11-15 20:39:47,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:39:47,080 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:39:47,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506741476] [2019-11-15 20:39:47,085 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:39:47,087 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:39:47,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:39:47,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:39:47,107 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2019-11-15 20:39:47,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:39:47,143 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2019-11-15 20:39:47,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:39:47,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2019-11-15 20:39:47,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-15 20:39:47,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 11 states and 14 transitions. [2019-11-15 20:39:47,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-15 20:39:47,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-15 20:39:47,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2019-11-15 20:39:47,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:39:47,156 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-15 20:39:47,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2019-11-15 20:39:47,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-15 20:39:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-15 20:39:47,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-11-15 20:39:47,188 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-15 20:39:47,188 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-11-15 20:39:47,188 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:39:47,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-11-15 20:39:47,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-15 20:39:47,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:39:47,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:39:47,191 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:39:47,191 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-15 20:39:47,191 INFO L791 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 46#L-1 havoc main_#res;havoc main_#t~nondet216, main_#t~nondet217, main_#t~malloc218.base, main_#t~malloc218.offset, main_#t~malloc219.base, main_#t~malloc219.offset, main_#t~nondet220, main_#t~ret221, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet216;havoc main_#t~nondet216;main_~length2~0 := main_#t~nondet217;havoc main_#t~nondet217; 47#L382 assume !(main_~length1~0 < 1); 50#L382-2 assume !(main_~length2~0 < 1); 55#L385-1 call main_#t~malloc218.base, main_#t~malloc218.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc218.base, main_#t~malloc218.offset;call main_#t~malloc219.base, main_#t~malloc219.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc219.base, main_#t~malloc219.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet220;havoc cstrncmp_#res;havoc cstrncmp_#t~mem209, cstrncmp_#t~short210, cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset, cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset, cstrncmp_#t~post205, cstrncmp_#t~mem206, cstrncmp_#t~mem207, cstrncmp_#t~short208, cstrncmp_#t~mem213, cstrncmp_#t~mem214, cstrncmp_#t~ite215, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 56#L367 assume !(0 == cstrncmp_~n); 53#L369-5 [2019-11-15 20:39:47,191 INFO L793 eck$LassoCheckResult]: Loop: 53#L369-5 cstrncmp_#t~post205 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post205 - 1;cstrncmp_#t~short208 := cstrncmp_#t~post205 > 0; 54#L369-1 assume cstrncmp_#t~short208;call cstrncmp_#t~mem206 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem207 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short208 := cstrncmp_#t~mem206 == cstrncmp_#t~mem207; 48#L369-3 assume !!cstrncmp_#t~short208;havoc cstrncmp_#t~mem207;havoc cstrncmp_#t~post205;havoc cstrncmp_#t~short208;havoc cstrncmp_#t~mem206;cstrncmp_#t~short210 := 0 == cstrncmp_~n; 49#L370 assume !cstrncmp_#t~short210;call cstrncmp_#t~mem209 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~short210 := 0 == cstrncmp_#t~mem209; 52#L370-2 assume !cstrncmp_#t~short210;havoc cstrncmp_#t~short210;havoc cstrncmp_#t~mem209;cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset - 1;havoc cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset;cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset - 1;havoc cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset; 53#L369-5 [2019-11-15 20:39:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:47,192 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 2 times [2019-11-15 20:39:47,192 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:39:47,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866769864] [2019-11-15 20:39:47,193 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,193 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:39:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:47,263 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:39:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:47,264 INFO L82 PathProgramCache]: Analyzing trace with hash 52587238, now seen corresponding path program 1 times [2019-11-15 20:39:47,264 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:39:47,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575813559] [2019-11-15 20:39:47,265 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,265 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:39:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:47,295 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:39:47,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:47,296 INFO L82 PathProgramCache]: Analyzing trace with hash -2120298631, now seen corresponding path program 1 times [2019-11-15 20:39:47,296 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:39:47,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764422844] [2019-11-15 20:39:47,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:39:47,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:39:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:39:47,405 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:39:47,743 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-11-15 20:39:48,343 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2019-11-15 20:39:48,554 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-11-15 20:39:48,569 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:39:48,570 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:39:48,571 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:39:48,571 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:39:48,571 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:39:48,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:39:48,581 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:39:48,581 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:39:48,581 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrncmp_reverse_alloca.i_Iteration2_Lasso [2019-11-15 20:39:48,582 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:39:48,582 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:39:48,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:48,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:49,174 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-11-15 20:39:49,391 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-11-15 20:39:49,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:49,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:49,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:39:50,541 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-11-15 20:39:50,578 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:39:50,583 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:39:50,586 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 [2019-11-15 20:39:50,588 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:39:50,588 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:39:50,589 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:39:50,589 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:39:50,589 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:39:50,590 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:39:50,591 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:39:50,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:39:50,593 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 [2019-11-15 20:39:50,594 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:39:50,594 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:39:50,594 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:39:50,594 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:39:50,594 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:39:50,595 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:39:50,595 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:39:50,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:39:50,597 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 [2019-11-15 20:39:50,598 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:39:50,598 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-15 20:39:50,598 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:39:50,598 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:39:50,604 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-15 20:39:50,604 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:39:50,643 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:39:50,652 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 20:39:50,652 INFO L444 ModelExtractionUtils]: 10 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:39:50,666 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:39:50,668 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-15 20:39:50,671 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:39:50,672 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~n) = 1*ULTIMATE.start_cstrncmp_~n Supporting invariants [] [2019-11-15 20:39:50,718 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-15 20:39:50,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:39:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:39:50,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:39:50,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:39:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:39:50,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 20:39:50,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:39:50,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:39:50,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:39:50,885 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 [2019-11-15 20:39:50,885 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand 4 states. [2019-11-15 20:39:50,933 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 21 states and 26 transitions. Complement of second has 6 states. [2019-11-15 20:39:50,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 20:39:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 20:39:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-11-15 20:39:50,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 5 letters. [2019-11-15 20:39:50,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:39:50,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2019-11-15 20:39:50,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:39:50,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 10 letters. [2019-11-15 20:39:50,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:39:50,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-11-15 20:39:50,941 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:39:50,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2019-11-15 20:39:50,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 20:39:50,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 20:39:50,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 20:39:50,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:39:50,942 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:39:50,942 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:39:50,943 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:39:50,943 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 20:39:50,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:39:50,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:39:50,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 20:39:50,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:39:50 BoogieIcfgContainer [2019-11-15 20:39:50,951 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:39:50,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:39:50,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:39:50,952 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:39:50,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:39:46" (3/4) ... [2019-11-15 20:39:50,956 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:39:50,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:39:50,958 INFO L168 Benchmark]: Toolchain (without parser) took 5411.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 226.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -131.0 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:50,959 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:50,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:50,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.91 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:50,961 INFO L168 Benchmark]: Boogie Preprocessor took 38.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:50,962 INFO L168 Benchmark]: RCFGBuilder took 367.53 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:50,963 INFO L168 Benchmark]: BuchiAutomizer took 4291.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:39:50,963 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:39:50,967 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 649.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.91 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 367.53 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4291.64 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 91.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.32 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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: 34 SDtfs, 12 SDslu, 23 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital249 mio100 ax100 hnf99 lsp88 ukn87 mio100 lsp51 div100 bol100 ite100 ukn100 eq189 hnf88 smp100 dnf136 smp97 tf100 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 74ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...