./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/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 fa76bf6b20245863a3a0ece612004b4f99489c23 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:38:01,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:38:01,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:38:01,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:38:01,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:38:01,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:38:01,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:38:01,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:38:01,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:38:01,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:38:01,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:38:01,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:38:01,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:38:01,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:38:01,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:38:01,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:38:01,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:38:01,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:38:01,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:38:01,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:38:01,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:38:01,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:38:01,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:38:01,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:38:01,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:38:01,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:38:01,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:38:01,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:38:01,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:38:01,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:38:01,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:38:01,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:38:01,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:38:01,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:38:01,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:38:01,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:38:01,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:38:01,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:38:01,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:38:01,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:38:01,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:38:01,754 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 23:38:01,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:38:01,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:38:01,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:38:01,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:38:01,808 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:38:01,808 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:38:01,808 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:38:01,808 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:38:01,809 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:38:01,809 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:38:01,810 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:38:01,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:38:01,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:38:01,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:38:01,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:38:01,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:38:01,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:38:01,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:38:01,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:38:01,812 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:38:01,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:38:01,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:38:01,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:38:01,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:38:01,813 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:38:01,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:38:01,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:38:01,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:38:01,814 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:38:01,815 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:38:01,815 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa76bf6b20245863a3a0ece612004b4f99489c23 [2020-11-29 23:38:02,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:38:02,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:38:02,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:38:02,140 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:38:02,140 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:38:02,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/../../sv-benchmarks/c/termination-dietlibc/strchr_short.i [2020-11-29 23:38:02,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/data/41623c815/e8d81d5a123a4404979337c13d307565/FLAG8bcf16933 [2020-11-29 23:38:02,724 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:38:02,725 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/sv-benchmarks/c/termination-dietlibc/strchr_short.i [2020-11-29 23:38:02,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/data/41623c815/e8d81d5a123a4404979337c13d307565/FLAG8bcf16933 [2020-11-29 23:38:03,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/data/41623c815/e8d81d5a123a4404979337c13d307565 [2020-11-29 23:38:03,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:38:03,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:38:03,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:38:03,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:38:03,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:38:03,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330cfbe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03, skipping insertion in model container [2020-11-29 23:38:03,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:38:03,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:38:03,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:38:03,477 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:38:03,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:38:03,610 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:38:03,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03 WrapperNode [2020-11-29 23:38:03,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:38:03,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:38:03,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:38:03,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:38:03,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:38:03,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:38:03,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:38:03,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:38:03,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... [2020-11-29 23:38:03,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:38:03,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:38:03,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:38:03,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:38:03,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/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 [2020-11-29 23:38:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:38:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:38:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:38:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:38:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:38:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:38:04,062 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:38:04,063 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 23:38:04,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:38:04 BoogieIcfgContainer [2020-11-29 23:38:04,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:38:04,065 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:38:04,065 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:38:04,070 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:38:04,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:38:04,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:38:03" (1/3) ... [2020-11-29 23:38:04,071 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3988372c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:38:04, skipping insertion in model container [2020-11-29 23:38:04,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:38:04,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:03" (2/3) ... [2020-11-29 23:38:04,072 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3988372c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:38:04, skipping insertion in model container [2020-11-29 23:38:04,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:38:04,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:38:04" (3/3) ... [2020-11-29 23:38:04,084 INFO L373 chiAutomizerObserver]: Analyzing ICFG strchr_short.i [2020-11-29 23:38:04,130 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:38:04,130 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:38:04,130 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:38:04,130 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:38:04,130 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:38:04,130 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:38:04,131 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:38:04,131 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:38:04,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-29 23:38:04,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:38:04,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:04,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:04,166 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:38:04,166 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:38:04,167 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:38:04,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-29 23:38:04,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:38:04,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:04,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:04,168 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:38:04,169 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:38:04,175 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 4#L516true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet7;havoc main_#t~nondet7;strchr_#in~t.base, strchr_#in~t.offset, strchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strchr_#res.base, strchr_#res.offset;havoc strchr_#t~mem2, strchr_#t~mem3, strchr_#t~pre4.base, strchr_#t~pre4.offset, strchr_~t.base, strchr_~t.offset, strchr_~c, strchr_~ch~0;strchr_~t.base, strchr_~t.offset := strchr_#in~t.base, strchr_#in~t.offset;strchr_~c := strchr_#in~c;havoc strchr_~ch~0;strchr_~ch~0 := (if strchr_~c % 256 <= 127 then strchr_~c % 256 else strchr_~c % 256 - 256); 10#L509-2true [2020-11-29 23:38:04,175 INFO L796 eck$LassoCheckResult]: Loop: 10#L509-2true assume !false;call strchr_#t~mem2 := read~int(strchr_~t.base, strchr_~t.offset, 1); 5#L510true assume !(strchr_#t~mem2 == strchr_~ch~0);havoc strchr_#t~mem2;call strchr_#t~mem3 := read~int(strchr_~t.base, strchr_~t.offset, 1); 9#L510-2true assume !(0 == strchr_#t~mem3);havoc strchr_#t~mem3;strchr_#t~pre4.base, strchr_#t~pre4.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre4.base, strchr_#t~pre4.offset; 10#L509-2true [2020-11-29 23:38:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:04,182 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-29 23:38:04,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:04,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876831794] [2020-11-29 23:38:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:04,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:04,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:04,358 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:04,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:04,363 INFO L82 PathProgramCache]: Analyzing trace with hash 44851, now seen corresponding path program 1 times [2020-11-29 23:38:04,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:04,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121891208] [2020-11-29 23:38:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:04,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:04,386 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:04,389 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:04,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:04,393 INFO L82 PathProgramCache]: Analyzing trace with hash 889574320, now seen corresponding path program 1 times [2020-11-29 23:38:04,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:04,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489201774] [2020-11-29 23:38:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:04,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:04,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:04,497 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:04,930 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-11-29 23:38:05,057 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-11-29 23:38:05,072 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:38:05,073 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:38:05,073 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:38:05,073 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:38:05,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:38:05,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:05,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:38:05,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:38:05,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: strchr_short.i_Iteration1_Lasso [2020-11-29 23:38:05,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:38:05,075 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:38:05,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,715 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-11-29 23:38:05,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:05,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:06,196 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-29 23:38:06,604 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-11-29 23:38:06,663 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:38:06,671 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:06,687 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 [2020-11-29 23:38:06,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:06,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:06,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:06,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:06,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:06,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:06,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:06,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:06,739 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 [2020-11-29 23:38:06,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:06,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:06,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:06,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:06,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:06,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:06,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:06,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:06,777 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 [2020-11-29 23:38:06,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:06,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:06,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:06,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:06,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:06,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:06,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:06,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:06,830 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 [2020-11-29 23:38:06,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:06,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:06,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:06,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:06,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:06,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:06,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:06,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:06,891 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 [2020-11-29 23:38:06,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:06,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:06,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:06,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:06,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:06,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:06,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:06,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:06,923 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 [2020-11-29 23:38:06,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:06,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:06,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:06,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:06,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:06,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:06,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:06,993 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 [2020-11-29 23:38:06,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:06,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:06,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:06,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:06,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:06,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:06,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:07,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:07,025 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 [2020-11-29 23:38:07,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:07,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:07,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:07,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:07,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:07,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:07,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:07,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:07,092 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 [2020-11-29 23:38:07,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:07,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:07,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:07,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:07,098 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:07,098 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:07,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:07,124 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 [2020-11-29 23:38:07,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:07,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:07,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:07,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:07,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:07,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:07,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:07,176 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 [2020-11-29 23:38:07,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:07,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:07,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:07,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:07,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:07,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:07,193 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:07,218 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 [2020-11-29 23:38:07,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:07,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:07,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:07,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:07,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:07,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:07,245 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:38:07,381 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 23:38:07,381 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fdecc49b-cd3b-4981-9021-63726f35edfa/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:07,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:38:07,410 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:38:07,411 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:38:07,411 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strchr_~t.offset, v_rep(select #length ULTIMATE.start_strchr_~t.base)_1) = -1*ULTIMATE.start_strchr_~t.offset + 1*v_rep(select #length ULTIMATE.start_strchr_~t.base)_1 Supporting invariants [] [2020-11-29 23:38:07,461 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 23:38:07,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 23:38:07,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:07,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:38:07,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:07,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:38:07,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:38:07,579 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 [2020-11-29 23:38:07,581 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-11-29 23:38:07,621 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 27 states and 33 transitions. Complement of second has 5 states. [2020-11-29 23:38:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 23:38:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:38:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-11-29 23:38:07,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 3 letters. [2020-11-29 23:38:07,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:07,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-29 23:38:07,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:07,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 6 letters. [2020-11-29 23:38:07,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:07,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2020-11-29 23:38:07,631 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:38:07,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2020-11-29 23:38:07,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:38:07,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:38:07,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:38:07,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:38:07,635 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:07,635 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:07,635 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:07,635 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:38:07,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:38:07,636 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:38:07,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 23:38:07,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:38:07 BoogieIcfgContainer [2020-11-29 23:38:07,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:38:07,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:38:07,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:38:07,642 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:38:07,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:38:04" (3/4) ... [2020-11-29 23:38:07,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:38:07,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:38:07,647 INFO L168 Benchmark]: Toolchain (without parser) took 4574.29 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 82.0 MB in the beginning and 75.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:07,647 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 37.3 MB in the beginning and 37.3 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:07,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.99 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 82.0 MB in the end (delta: -314.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:07,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 115.3 MB. Free memory was 82.0 MB in the beginning and 79.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:07,649 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 78.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:07,650 INFO L168 Benchmark]: RCFGBuilder took 388.18 ms. Allocated memory is still 115.3 MB. Free memory was 78.7 MB in the beginning and 65.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:07,651 INFO L168 Benchmark]: BuchiAutomizer took 3576.04 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 65.3 MB in the beginning and 75.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:07,651 INFO L168 Benchmark]: Witness Printer took 3.76 ms. Allocated memory is still 138.4 MB. Free memory is still 75.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:07,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 37.3 MB in the beginning and 37.3 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 535.99 ms. Allocated memory is still 115.3 MB. Free memory was 81.7 MB in the beginning and 82.0 MB in the end (delta: -314.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 115.3 MB. Free memory was 82.0 MB in the beginning and 79.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 115.3 MB. Free memory was 79.9 MB in the beginning and 78.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 388.18 ms. Allocated memory is still 115.3 MB. Free memory was 78.7 MB in the beginning and 65.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3576.04 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 65.3 MB in the beginning and 75.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.76 ms. Allocated memory is still 138.4 MB. Free memory is still 75.2 MB. There was no memory consumed. Max. memory is 16.1 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 * t + unknown-#length-unknown[t] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. 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: 11 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital148 mio100 ax100 hnf99 lsp111 ukn111 mio100 lsp34 div135 bol100 ite100 ukn100 eq159 hnf73 smp74 dnf281 smp56 tf100 neg93 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...