./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrchr_malloc.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_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrchr_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/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 52f90dd69b1856f1819dcbf79b462fc94a85a38d .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:32:53,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:32:53,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:32:53,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:32:53,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:32:53,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:32:53,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:32:53,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:32:53,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:32:53,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:32:53,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:32:53,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:32:53,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:32:53,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:32:53,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:32:53,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:32:53,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:32:53,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:32:53,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:32:53,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:32:53,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:32:53,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:32:53,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:32:53,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:32:53,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:32:53,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:32:53,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:32:53,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:32:53,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:32:53,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:32:53,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:32:53,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:32:53,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:32:53,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:32:53,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:32:53,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:32:53,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:32:53,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:32:53,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:32:53,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:32:53,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:32:53,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-16 00:32:53,704 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:32:53,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:32:53,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:32:53,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:32:53,708 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:32:53,709 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-16 00:32:53,709 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-16 00:32:53,709 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-16 00:32:53,709 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-16 00:32:53,710 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-16 00:32:53,710 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-16 00:32:53,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:32:53,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:32:53,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:32:53,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:32:53,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-16 00:32:53,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-16 00:32:53,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-16 00:32:53,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:32:53,713 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-16 00:32:53,713 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:32:53,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-16 00:32:53,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:32:53,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:32:53,714 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-16 00:32:53,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:32:53,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:32:53,715 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-16 00:32:53,718 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-16 00:32:53,718 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_0208fffb-6512-4d55-ac72-ef122d1147f1/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 -> 52f90dd69b1856f1819dcbf79b462fc94a85a38d [2019-11-16 00:32:53,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:32:53,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:32:53,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:32:53,771 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:32:53,772 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:32:53,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrchr_malloc.i [2019-11-16 00:32:53,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/data/cd550e7f9/a24818002a0047dfac639205e2236c52/FLAG99a799ef0 [2019-11-16 00:32:54,311 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:32:54,312 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/sv-benchmarks/c/termination-15/cstrchr_malloc.i [2019-11-16 00:32:54,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/data/cd550e7f9/a24818002a0047dfac639205e2236c52/FLAG99a799ef0 [2019-11-16 00:32:54,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/bin/uautomizer/data/cd550e7f9/a24818002a0047dfac639205e2236c52 [2019-11-16 00:32:54,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:32:54,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:32:54,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:32:54,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:32:54,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:32:54,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:54" (1/1) ... [2019-11-16 00:32:54,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7020d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:54, skipping insertion in model container [2019-11-16 00:32:54,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:54" (1/1) ... [2019-11-16 00:32:54,652 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:32:54,683 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:32:55,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:32:55,071 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:32:55,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:32:55,201 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:32:55,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55 WrapperNode [2019-11-16 00:32:55,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:32:55,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:32:55,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:32:55,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:32:55,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:32:55,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:32:55,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:32:55,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:32:55,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... [2019-11-16 00:32:55,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:32:55,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:32:55,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:32:55,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:32:55,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0208fffb-6512-4d55-ac72-ef122d1147f1/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 [2019-11-16 00:32:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:32:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:32:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-16 00:32:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:32:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:32:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:32:55,620 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:32:55,620 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-16 00:32:55,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:55 BoogieIcfgContainer [2019-11-16 00:32:55,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:32:55,622 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-16 00:32:55,622 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-16 00:32:55,625 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-16 00:32:55,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:32:55,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:32:54" (1/3) ... [2019-11-16 00:32:55,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27a0a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:32:55, skipping insertion in model container [2019-11-16 00:32:55,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:32:55,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:55" (2/3) ... [2019-11-16 00:32:55,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27a0a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:32:55, skipping insertion in model container [2019-11-16 00:32:55,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:32:55,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:55" (3/3) ... [2019-11-16 00:32:55,629 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrchr_malloc.i [2019-11-16 00:32:55,691 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-16 00:32:55,691 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-16 00:32:55,692 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-16 00:32:55,692 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:32:55,692 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:32:55,692 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-16 00:32:55,692 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:32:55,692 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-16 00:32:55,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-16 00:32:55,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-16 00:32:55,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:32:55,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:32:55,736 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-16 00:32:55,736 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-16 00:32:55,736 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-16 00:32:55,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-16 00:32:55,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-16 00:32:55,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:32:55,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:32:55,739 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-16 00:32:55,739 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-16 00:32:55,748 INFO L791 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 7#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 8#L372true assume !(main_~length~0 < 1); 12#L372-2true call main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.allocOnHeap(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 9#L366-5true [2019-11-16 00:32:55,749 INFO L793 eck$LassoCheckResult]: Loop: 9#L366-5true call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := 0 != cstrchr_#t~mem205; 4#L366-1true assume cstrchr_#t~short207;call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 6#L366-3true assume !!cstrchr_#t~short207;havoc cstrchr_#t~mem205;havoc cstrchr_#t~mem206;havoc cstrchr_#t~short207;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, 1 + cstrchr_#t~post208.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 9#L366-5true [2019-11-16 00:32:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:32:55,754 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-16 00:32:55,762 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:32:55,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436459048] [2019-11-16 00:32:55,762 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:32:55,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:32:55,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:32:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:32:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:32:55,881 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:32:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:32:55,882 INFO L82 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2019-11-16 00:32:55,882 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:32:55,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887103623] [2019-11-16 00:32:55,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:32:55,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:32:55,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:32:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:32:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:32:55,916 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:32:55,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:32:55,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2019-11-16 00:32:55,918 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:32:55,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207465108] [2019-11-16 00:32:55,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:32:55,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:32:55,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:32:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:32:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:32:55,967 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:32:56,104 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2019-11-16 00:32:56,311 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2019-11-16 00:32:56,463 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-11-16 00:32:56,538 INFO L210 LassoAnalysis]: Preferences: [2019-11-16 00:32:56,540 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-16 00:32:56,540 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-16 00:32:56,540 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-16 00:32:56,540 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-16 00:32:56,540 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-16 00:32:56,540 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-16 00:32:56,541 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-16 00:32:56,541 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrchr_malloc.i_Iteration1_Lasso [2019-11-16 00:32:56,541 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-16 00:32:56,541 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-16 00:32:56,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-16 00:32:56,773 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-11-16 00:32:56,918 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-16 00:32:57,531 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-16 00:32:57,595 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-16 00:32:57,600 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-16 00:32:57,602 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 [2019-11-16 00:32:57,603 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,604 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,604 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,605 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,605 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,607 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,607 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,610 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 [2019-11-16 00:32:57,610 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,611 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,611 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,611 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,611 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,612 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,612 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,613 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,613 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 [2019-11-16 00:32:57,614 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,614 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,614 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,614 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,617 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:32:57,617 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:32:57,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,621 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 [2019-11-16 00:32:57,622 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,622 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,623 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,623 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,623 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,623 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,624 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,624 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,625 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 [2019-11-16 00:32:57,626 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,626 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,626 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,626 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,626 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,627 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,627 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,628 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 [2019-11-16 00:32:57,629 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,629 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,630 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,630 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,630 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,630 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,631 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,634 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 [2019-11-16 00:32:57,635 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,635 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,635 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,636 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,636 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,636 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,636 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,637 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 [2019-11-16 00:32:57,638 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,638 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,638 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,638 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,640 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:32:57,640 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:32:57,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,644 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 [2019-11-16 00:32:57,645 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,645 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,645 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,645 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,645 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,646 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,646 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,654 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 [2019-11-16 00:32:57,656 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,656 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,656 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,656 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,656 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,657 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,657 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,664 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 [2019-11-16 00:32:57,665 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,665 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,665 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,665 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,665 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,666 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,666 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,668 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 [2019-11-16 00:32:57,668 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,668 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,668 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,668 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,669 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,669 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,669 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,673 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 [2019-11-16 00:32:57,675 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,675 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,675 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,675 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,676 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,677 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,678 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,680 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,681 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 [2019-11-16 00:32:57,682 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,682 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,682 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,683 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,683 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,683 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,683 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,686 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 [2019-11-16 00:32:57,687 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,687 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,687 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,688 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,688 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,688 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,688 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,690 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 [2019-11-16 00:32:57,691 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,691 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-16 00:32:57,691 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,691 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,691 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,692 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-16 00:32:57,693 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-16 00:32:57,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,698 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 [2019-11-16 00:32:57,699 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,700 INFO L202 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-16 00:32:57,700 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,701 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,713 INFO L400 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-16 00:32:57,713 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:32:57,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,761 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 [2019-11-16 00:32:57,761 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,761 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,761 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:57,762 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,763 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:32:57,763 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:32:57,791 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:57,792 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 [2019-11-16 00:32:57,792 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:57,793 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:57,793 INFO L203 nArgumentSynthesizer]: 6 loop disjuncts [2019-11-16 00:32:57,793 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:57,853 INFO L400 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2019-11-16 00:32:57,854 INFO L401 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-11-16 00:32:58,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-16 00:32:58,103 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 [2019-11-16 00:32:58,103 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-16 00:32:58,104 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-16 00:32:58,104 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-16 00:32:58,104 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-16 00:32:58,106 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-16 00:32:58,107 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-16 00:32:58,138 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-16 00:32:58,166 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-16 00:32:58,166 INFO L444 ModelExtractionUtils]: 20 out of 25 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-11-16 00:32:58,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-16 00:32:58,170 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-16 00:32:58,170 INFO L510 LassoAnalysis]: Proved termination. [2019-11-16 00:32:58,171 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1) = -1*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_cstrchr_~s.base)_1 Supporting invariants [] [2019-11-16 00:32:58,193 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-11-16 00:32:58,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-16 00:32:58,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:32:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:32:58,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:32:58,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:32:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:32:58,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-16 00:32:58,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:32:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:32:58,284 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-16 00:32:58,286 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-11-16 00:32:58,334 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 5 states. [2019-11-16 00:32:58,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-16 00:32:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-16 00:32:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-11-16 00:32:58,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-16 00:32:58,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:32:58,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-16 00:32:58,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:32:58,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 6 letters. [2019-11-16 00:32:58,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-16 00:32:58,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2019-11-16 00:32:58,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:32:58,345 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2019-11-16 00:32:58,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-16 00:32:58,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-16 00:32:58,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-16 00:32:58,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-16 00:32:58,346 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:32:58,346 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:32:58,347 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:32:58,347 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-16 00:32:58,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:32:58,347 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-16 00:32:58,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-16 00:32:58,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:32:58 BoogieIcfgContainer [2019-11-16 00:32:58,353 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-16 00:32:58,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:32:58,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:32:58,354 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:32:58,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:55" (3/4) ... [2019-11-16 00:32:58,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:32:58,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:32:58,359 INFO L168 Benchmark]: Toolchain (without parser) took 3723.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 942.4 MB in the beginning and 769.1 MB in the end (delta: 173.3 MB). Peak memory consumption was 284.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:32:58,360 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:32:58,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:32:58,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:32:58,362 INFO L168 Benchmark]: Boogie Preprocessor took 34.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:32:58,362 INFO L168 Benchmark]: RCFGBuilder took 341.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:32:58,363 INFO L168 Benchmark]: BuchiAutomizer took 2731.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 769.1 MB in the end (delta: 286.0 MB). Peak memory consumption was 286.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:32:58,363 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 1.1 GB. Free memory is still 769.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:32:58,367 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 565.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 341.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2731.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 769.1 MB in the end (delta: 286.0 MB). Peak memory consumption was 286.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.10 ms. Allocated memory is still 1.1 GB. Free memory is still 769.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 25 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital180 mio100 ax100 hnf98 lsp98 ukn70 mio100 lsp33 div164 bol100 ite100 ukn100 eq155 hnf66 smp100 dnf873 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 310ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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...