./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/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 df00388ee02e9eb4eefa9325fb06df0e14414ced ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:00:23,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:00:23,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:00:23,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:00:23,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:00:23,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:00:23,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:00:23,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:00:23,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:00:23,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:00:23,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:00:23,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:00:23,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:00:23,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:00:23,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:00:23,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:00:23,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:00:23,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:00:23,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:00:23,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:00:23,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:00:23,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:00:23,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:00:23,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:00:23,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:00:23,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:00:23,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:00:23,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:00:23,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:00:23,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:00:23,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:00:23,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:00:23,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:00:23,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:00:23,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:00:23,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:00:23,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:00:23,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:00:23,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:00:23,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:00:23,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:00:23,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-12-01 16:00:23,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:00:23,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:00:23,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:00:23,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:00:23,850 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 16:00:23,850 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 16:00:23,850 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 16:00:23,851 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 16:00:23,851 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 16:00:23,851 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 16:00:23,851 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 16:00:23,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:00:23,852 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:00:23,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:00:23,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:00:23,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 16:00:23,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 16:00:23,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 16:00:23,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:00:23,853 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 16:00:23,853 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:00:23,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 16:00:23,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:00:23,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 16:00:23,854 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 16:00:23,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:00:23,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 16:00:23,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 16:00:23,855 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 16:00:23,856 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 16:00:23,856 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_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df00388ee02e9eb4eefa9325fb06df0e14414ced [2020-12-01 16:00:24,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:00:24,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:00:24,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:00:24,123 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:00:24,124 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:00:24,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrlen_malloc.i [2020-12-01 16:00:24,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/data/da90a56b0/eba17256217245aa936db4c0aa364621/FLAG5b44fc3ff [2020-12-01 16:00:24,744 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:00:24,745 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/sv-benchmarks/c/termination-15/cstrlen_malloc.i [2020-12-01 16:00:24,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/data/da90a56b0/eba17256217245aa936db4c0aa364621/FLAG5b44fc3ff [2020-12-01 16:00:25,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/bin/uautomizer/data/da90a56b0/eba17256217245aa936db4c0aa364621 [2020-12-01 16:00:25,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:00:25,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:00:25,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:00:25,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:00:25,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:00:25,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147c0e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25, skipping insertion in model container [2020-12-01 16:00:25,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:00:25,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:00:25,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:00:25,520 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:00:25,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:00:25,666 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:00:25,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25 WrapperNode [2020-12-01 16:00:25,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:00:25,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:00:25,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:00:25,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:00:25,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:00:25,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:00:25,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:00:25,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:00:25,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... [2020-12-01 16:00:25,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:00:25,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:00:25,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:00:25,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:00:25,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/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 [2020-12-01 16:00:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:00:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:00:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:00:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:00:25,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:00:25,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:00:26,055 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:00:26,056 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 16:00:26,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:00:26 BoogieIcfgContainer [2020-12-01 16:00:26,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:00:26,058 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 16:00:26,058 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 16:00:26,062 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 16:00:26,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:00:26,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 04:00:25" (1/3) ... [2020-12-01 16:00:26,065 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f2f0fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:00:26, skipping insertion in model container [2020-12-01 16:00:26,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:00:26,065 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:00:25" (2/3) ... [2020-12-01 16:00:26,066 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f2f0fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:00:26, skipping insertion in model container [2020-12-01 16:00:26,066 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:00:26,066 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:00:26" (3/3) ... [2020-12-01 16:00:26,067 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrlen_malloc.i [2020-12-01 16:00:26,166 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 16:00:26,166 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 16:00:26,166 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 16:00:26,166 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 16:00:26,166 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 16:00:26,167 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 16:00:26,167 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 16:00:26,167 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 16:00:26,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-12-01 16:00:26,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:00:26,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:00:26,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:00:26,224 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-12-01 16:00:26,225 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 16:00:26,225 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 16:00:26,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-12-01 16:00:26,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:00:26,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:00:26,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:00:26,243 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-12-01 16:00:26,244 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 16:00:26,251 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 13#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2020-12-01 16:00:26,251 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(0 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, 1 + cstrlen_#t~post206.offset;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 7#L367-3true [2020-12-01 16:00:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:00:26,265 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-12-01 16:00:26,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:00:26,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023820643] [2020-12-01 16:00:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:00:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:26,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:26,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:26,473 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:00:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:00:26,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2020-12-01 16:00:26,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:00:26,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264444645] [2020-12-01 16:00:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:00:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:26,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:26,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:26,513 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:00:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:00:26,529 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2020-12-01 16:00:26,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:00:26,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961985400] [2020-12-01 16:00:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:00:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:26,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:26,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:26,584 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:00:26,845 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-01 16:00:26,948 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:00:26,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:00:26,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:00:26,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:00:26,949 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:00:26,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:26,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:00:26,950 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:00:26,950 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_malloc.i_Iteration1_Lasso [2020-12-01 16:00:26,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:00:26,950 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:00:26,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,136 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-01 16:00:27,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:27,641 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 24 [2020-12-01 16:00:27,726 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:00:27,730 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/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) [2020-12-01 16:00:27,748 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 [2020-12-01 16:00:27,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:27,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:27,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:27,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:27,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:27,760 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:27,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/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) [2020-12-01 16:00:27,814 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 [2020-12-01 16:00:27,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:27,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:27,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:27,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:27,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:27,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:00:27,893 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:00:27,938 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-12-01 16:00:27,938 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb3b5583-3ea1-455c-ab39-ca806d1eac5e/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) [2020-12-01 16:00:27,947 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:27,971 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 16:00:27,971 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:00:27,972 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc208.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc208.base)_1 Supporting invariants [] [2020-12-01 16:00:28,016 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-12-01 16:00:28,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 16:00:28,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:00:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:00:28,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 16:00:28,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:00:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:00:28,106 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 16:00:28,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:00:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:00:28,143 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 [2020-12-01 16:00:28,144 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-12-01 16:00:28,213 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 5 states. [2020-12-01 16:00:28,214 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 [2020-12-01 16:00:28,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:00:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-12-01 16:00:28,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2020-12-01 16:00:28,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:00:28,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2020-12-01 16:00:28,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:00:28,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2020-12-01 16:00:28,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:00:28,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2020-12-01 16:00:28,228 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:00:28,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-12-01 16:00:28,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 16:00:28,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 16:00:28,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 16:00:28,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:00:28,233 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:00:28,233 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:00:28,233 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:00:28,234 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 16:00:28,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 16:00:28,235 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:00:28,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 16:00:28,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:00:28 BoogieIcfgContainer [2020-12-01 16:00:28,240 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 16:00:28,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:00:28,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:00:28,241 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:00:28,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:00:26" (3/4) ... [2020-12-01 16:00:28,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 16:00:28,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:00:28,248 INFO L168 Benchmark]: Toolchain (without parser) took 3172.04 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 67.8 MB in the beginning and 51.6 MB in the end (delta: 16.2 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:28,249 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 57.9 MB in the beginning and 57.8 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:00:28,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.00 ms. Allocated memory is still 98.6 MB. Free memory was 67.6 MB in the beginning and 59.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:28,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 57.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:28,252 INFO L168 Benchmark]: Boogie Preprocessor took 43.82 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 56.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:28,253 INFO L168 Benchmark]: RCFGBuilder took 282.71 ms. Allocated memory is still 98.6 MB. Free memory was 56.5 MB in the beginning and 44.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:28,255 INFO L168 Benchmark]: BuchiAutomizer took 2181.82 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 44.3 MB in the beginning and 51.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:28,256 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 119.5 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:00:28,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 57.9 MB in the beginning and 57.8 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 593.00 ms. Allocated memory is still 98.6 MB. Free memory was 67.6 MB in the beginning and 59.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.11 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 57.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.82 ms. Allocated memory is still 98.6 MB. Free memory was 57.6 MB in the beginning and 56.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 282.71 ms. Allocated memory is still 98.6 MB. Free memory was 56.5 MB in the beginning and 44.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2181.82 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 44.3 MB in the beginning and 51.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.52 ms. Allocated memory is still 119.5 MB. Free memory is still 51.6 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 * p + unknown-#length-unknown[malloc(length1 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. 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: 9 SDtfs, 15 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital116 mio100 ax100 hnf100 lsp94 ukn91 mio100 lsp44 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf116 smp93 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms 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...