./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/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 32bit --witnessprinter.graph.data.programhash 50bdaf600d03af0a677a59daf6a875dbe69c10b2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:03:53,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:03:53,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:03:53,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:03:53,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:03:53,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:03:53,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:03:53,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:03:53,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:03:53,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:03:53,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:03:53,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:03:53,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:03:53,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:03:53,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:03:53,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:03:53,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:03:53,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:03:53,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:03:53,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:03:53,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:03:53,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:03:53,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:03:53,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:03:53,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:03:53,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:03:53,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:03:53,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:03:53,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:03:53,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:03:53,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:03:53,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:03:53,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:03:53,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:03:53,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:03:53,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:03:53,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:03:53,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:03:53,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:03:53,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:03:53,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:03:53,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 10:03:53,959 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:03:53,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:03:53,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:03:53,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:03:53,961 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:03:53,962 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:03:53,962 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:03:53,962 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:03:53,962 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:03:53,962 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:03:53,963 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:03:53,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:03:53,963 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:03:53,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:03:53,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:03:53,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:03:53,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:03:53,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:03:53,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:03:53,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:03:53,965 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:03:53,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:03:53,965 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:03:53,965 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:03:53,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:03:53,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:03:53,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:03:53,966 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:03:53,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:03:53,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:03:53,967 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:03:53,968 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:03:53,968 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50bdaf600d03af0a677a59daf6a875dbe69c10b2 [2019-11-20 10:03:54,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:03:54,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:03:54,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:03:54,228 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:03:54,229 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:03:54,229 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i [2019-11-20 10:03:54,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/data/65bfe171b/1e972aabef924b68ac8ee2551640af44/FLAG20c1a0b88 [2019-11-20 10:03:54,967 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:03:54,973 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/sv-benchmarks/c/array-memsafety/strreplace-alloca-2.i [2019-11-20 10:03:54,990 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/data/65bfe171b/1e972aabef924b68ac8ee2551640af44/FLAG20c1a0b88 [2019-11-20 10:03:55,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/data/65bfe171b/1e972aabef924b68ac8ee2551640af44 [2019-11-20 10:03:55,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:03:55,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:03:55,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:03:55,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:03:55,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:03:55,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:55,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5568b1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55, skipping insertion in model container [2019-11-20 10:03:55,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:55,201 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:03:55,245 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:03:55,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:03:55,808 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:03:55,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:03:55,954 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:03:55,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55 WrapperNode [2019-11-20 10:03:55,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:03:55,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:03:55,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:03:55,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:03:55,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:55,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:03:56,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:03:56,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:03:56,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:03:56,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... [2019-11-20 10:03:56,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:03:56,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:03:56,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:03:56,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:03:56,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:03:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:03:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:03:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:03:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:03:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:03:56,553 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:03:56,554 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 10:03:56,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:03:56 BoogieIcfgContainer [2019-11-20 10:03:56,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:03:56,556 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:03:56,556 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:03:56,560 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:03:56,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:03:56,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:03:55" (1/3) ... [2019-11-20 10:03:56,563 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@123f1264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:03:56, skipping insertion in model container [2019-11-20 10:03:56,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:03:56,563 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:03:55" (2/3) ... [2019-11-20 10:03:56,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@123f1264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:03:56, skipping insertion in model container [2019-11-20 10:03:56,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:03:56,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:03:56" (3/3) ... [2019-11-20 10:03:56,566 INFO L371 chiAutomizerObserver]: Analyzing ICFG strreplace-alloca-2.i [2019-11-20 10:03:56,629 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:03:56,629 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:03:56,629 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:03:56,630 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:03:56,630 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:03:56,630 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:03:56,630 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:03:56,630 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:03:56,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 10:03:56,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 10:03:56,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:03:56,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:03:56,677 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 10:03:56,677 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 10:03:56,677 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:03:56,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 10:03:56,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 10:03:56,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:03:56,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:03:56,680 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-20 10:03:56,680 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 10:03:56,687 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 17#L528true assume !(main_~length1~0 < 1); 5#L528-2true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 12#L533-3true [2019-11-20 10:03:56,687 INFO L796 eck$LassoCheckResult]: Loop: 12#L533-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet9, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 11#L533-2true main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 12#L533-3true [2019-11-20 10:03:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:56,694 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-20 10:03:56,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:56,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715960128] [2019-11-20 10:03:56,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:56,846 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:03:56,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:56,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2019-11-20 10:03:56,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:56,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858569514] [2019-11-20 10:03:56,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:56,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:03:56,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:56,874 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2019-11-20 10:03:56,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:56,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924330737] [2019-11-20 10:03:56,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:56,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:03:57,164 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-11-20 10:03:57,230 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:03:57,231 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:03:57,231 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:03:57,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:03:57,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:03:57,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:57,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:03:57,233 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:03:57,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: strreplace-alloca-2.i_Iteration1_Lasso [2019-11-20 10:03:57,233 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:03:57,233 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:03:57,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:03:57,831 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:03:57,837 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:03:57,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:57,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:57,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:03:57,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:57,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:57,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:57,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:03:57,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:57,866 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:03:57,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:57,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:57,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:03:57,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:57,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:57,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:57,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:03:57,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:57,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:03:57,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:57,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:57,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:03:57,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:57,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:57,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:57,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:03:57,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:57,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:03:57,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:57,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:57,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:03:57,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:57,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:57,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:57,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:03:57,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:57,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:03:57,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:57,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:57,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:03:57,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:57,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:57,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:57,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:03:57,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:57,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:03:57,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:57,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:57,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:57,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:57,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:57,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:03:57,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:58,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:03:58,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:58,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:58,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:58,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:58,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:58,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:03:58,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:58,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:58,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:58,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:58,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:58,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:58,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:58,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:03:58,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:03:58,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:58,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:58,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:58,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:58,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:58,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:58,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:03:58,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:03:58,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/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) [2019-11-20 10:03:58,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:58,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:58,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:03:58,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:58,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:58,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:58,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:03:58,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:58,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/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) [2019-11-20 10:03:58,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:58,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:58,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:58,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:58,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:58,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:03:58,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:58,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/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 [2019-11-20 10:03:58,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:03:58,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:03:58,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:03:58,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:03:58,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:03:58,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:03:58,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:03:58,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:03:58,332 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2019-11-20 10:03:58,332 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/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) [2019-11-20 10:03:58,355 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:03:58,390 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 10:03:58,390 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:03:58,391 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 10:03:58,447 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 10:03:58,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:03:58,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:03:58,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:03:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:03:58,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:03:58,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:03:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:03:58,574 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 10:03:58,576 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2019-11-20 10:03:58,662 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 38 states and 51 transitions. Complement of second has 7 states. [2019-11-20 10:03:58,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 10:03:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:03:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2019-11-20 10:03:58,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-20 10:03:58,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:03:58,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-20 10:03:58,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:03:58,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-20 10:03:58,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:03:58,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2019-11-20 10:03:58,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 10:03:58,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 12 states and 16 transitions. [2019-11-20 10:03:58,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-20 10:03:58,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 10:03:58,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2019-11-20 10:03:58,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:03:58,696 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-20 10:03:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2019-11-20 10:03:58,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 10:03:58,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 10:03:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-11-20 10:03:58,735 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-20 10:03:58,735 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-11-20 10:03:58,736 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:03:58,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-11-20 10:03:58,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 10:03:58,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:03:58,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:03:58,739 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:03:58,740 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 10:03:58,740 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 115#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 116#L528 assume !(main_~length1~0 < 1); 117#L528-2 call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 118#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 122#L533-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrreplace_#in~s.base, cstrreplace_#in~s.offset, cstrreplace_#in~old, cstrreplace_#in~new := main_~nondetString1~0.base, main_~nondetString1~0.offset, (if main_#t~nondet10 % 256 <= 127 then main_#t~nondet10 % 256 else main_#t~nondet10 % 256 - 256), (if main_#t~nondet11 % 256 <= 127 then main_#t~nondet11 % 256 else main_#t~nondet11 % 256 - 256);havoc cstrreplace_#res;havoc cstrreplace_#t~mem3, cstrreplace_#t~post4, cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset, cstrreplace_#t~mem2, cstrreplace_~s.base, cstrreplace_~s.offset, cstrreplace_~old, cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, cstrreplace_~numReplaced~0;cstrreplace_~s.base, cstrreplace_~s.offset := cstrreplace_#in~s.base, cstrreplace_#in~s.offset;cstrreplace_~old := cstrreplace_#in~old;cstrreplace_~new := cstrreplace_#in~new;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_~s.base, cstrreplace_~s.offset;cstrreplace_~numReplaced~0 := 0; 112#L517-3 [2019-11-20 10:03:58,741 INFO L796 eck$LassoCheckResult]: Loop: 112#L517-3 call cstrreplace_#t~mem2 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 113#L517-1 assume !!(0 != cstrreplace_#t~mem2);havoc cstrreplace_#t~mem2;call cstrreplace_#t~mem3 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 114#L518 assume cstrreplace_#t~mem3 == cstrreplace_~old;havoc cstrreplace_#t~mem3;call write~int(cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1);cstrreplace_#t~post4 := cstrreplace_~numReplaced~0;cstrreplace_~numReplaced~0 := 1 + cstrreplace_#t~post4;havoc cstrreplace_#t~post4; 111#L518-2 cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset := cstrreplace_~p~0.base, cstrreplace_~p~0.offset;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_#t~post5.base, 1 + cstrreplace_#t~post5.offset;havoc cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset; 112#L517-3 [2019-11-20 10:03:58,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:58,742 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2019-11-20 10:03:58,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:58,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418564019] [2019-11-20 10:03:58,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:58,849 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:03:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:58,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1790538, now seen corresponding path program 1 times [2019-11-20 10:03:58,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:58,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700256134] [2019-11-20 10:03:58,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:58,869 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:03:58,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:58,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1952978730, now seen corresponding path program 1 times [2019-11-20 10:03:58,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:58,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704898102] [2019-11-20 10:03:58,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:03:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:03:59,161 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704898102] [2019-11-20 10:03:59,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:03:59,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 10:03:59,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097551741] [2019-11-20 10:03:59,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:03:59,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 10:03:59,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:03:59,266 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 7 states. [2019-11-20 10:03:59,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:03:59,426 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-11-20 10:03:59,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:03:59,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2019-11-20 10:03:59,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 10:03:59,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 16 transitions. [2019-11-20 10:03:59,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 10:03:59,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 10:03:59,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2019-11-20 10:03:59,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:03:59,430 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-20 10:03:59,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2019-11-20 10:03:59,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-20 10:03:59,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 10:03:59,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-11-20 10:03:59,432 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 10:03:59,432 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 10:03:59,433 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 10:03:59,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-11-20 10:03:59,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 10:03:59,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:03:59,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:03:59,434 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:03:59,434 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 10:03:59,435 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 155#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet9, main_#t~post8, main_~i~0, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6; 156#L528 assume !(main_~length1~0 < 1); 161#L528-2 call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;main_~i~0 := 0; 162#L533-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet9, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet9; 164#L533-2 main_#t~post8 := main_~i~0;main_~i~0 := 1 + main_#t~post8;havoc main_#t~post8; 165#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 166#L533-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrreplace_#in~s.base, cstrreplace_#in~s.offset, cstrreplace_#in~old, cstrreplace_#in~new := main_~nondetString1~0.base, main_~nondetString1~0.offset, (if main_#t~nondet10 % 256 <= 127 then main_#t~nondet10 % 256 else main_#t~nondet10 % 256 - 256), (if main_#t~nondet11 % 256 <= 127 then main_#t~nondet11 % 256 else main_#t~nondet11 % 256 - 256);havoc cstrreplace_#res;havoc cstrreplace_#t~mem3, cstrreplace_#t~post4, cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset, cstrreplace_#t~mem2, cstrreplace_~s.base, cstrreplace_~s.offset, cstrreplace_~old, cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, cstrreplace_~numReplaced~0;cstrreplace_~s.base, cstrreplace_~s.offset := cstrreplace_#in~s.base, cstrreplace_#in~s.offset;cstrreplace_~old := cstrreplace_#in~old;cstrreplace_~new := cstrreplace_#in~new;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_~s.base, cstrreplace_~s.offset;cstrreplace_~numReplaced~0 := 0; 160#L517-3 [2019-11-20 10:03:59,435 INFO L796 eck$LassoCheckResult]: Loop: 160#L517-3 call cstrreplace_#t~mem2 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 157#L517-1 assume !!(0 != cstrreplace_#t~mem2);havoc cstrreplace_#t~mem2;call cstrreplace_#t~mem3 := read~int(cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1); 158#L518 assume cstrreplace_#t~mem3 == cstrreplace_~old;havoc cstrreplace_#t~mem3;call write~int(cstrreplace_~new, cstrreplace_~p~0.base, cstrreplace_~p~0.offset, 1);cstrreplace_#t~post4 := cstrreplace_~numReplaced~0;cstrreplace_~numReplaced~0 := 1 + cstrreplace_#t~post4;havoc cstrreplace_#t~post4; 159#L518-2 cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset := cstrreplace_~p~0.base, cstrreplace_~p~0.offset;cstrreplace_~p~0.base, cstrreplace_~p~0.offset := cstrreplace_#t~post5.base, 1 + cstrreplace_#t~post5.offset;havoc cstrreplace_#t~post5.base, cstrreplace_#t~post5.offset; 160#L517-3 [2019-11-20 10:03:59,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:59,435 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2019-11-20 10:03:59,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:59,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168125189] [2019-11-20 10:03:59,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:59,514 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:03:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:59,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1790538, now seen corresponding path program 2 times [2019-11-20 10:03:59,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:59,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846993663] [2019-11-20 10:03:59,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:59,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:03:59,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:03:59,545 INFO L82 PathProgramCache]: Analyzing trace with hash -357903304, now seen corresponding path program 1 times [2019-11-20 10:03:59,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:03:59,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74459003] [2019-11-20 10:03:59,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:03:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:03:59,611 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:04:00,089 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-11-20 10:04:00,816 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-11-20 10:04:00,820 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:04:00,820 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:04:00,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:04:00,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:04:00,820 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:04:00,821 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:00,821 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:04:00,821 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:04:00,821 INFO L133 ssoRankerPreferences]: Filename of dumped script: strreplace-alloca-2.i_Iteration3_Lasso [2019-11-20 10:04:00,821 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:04:00,821 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:04:00,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:00,933 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-11-20 10:04:01,923 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-11-20 10:04:02,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:02,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:02,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:02,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:02,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:04:02,680 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-20 10:04:02,821 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:04:02,822 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,830 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 [2019-11-20 10:04:02,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:02,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:02,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:04:02,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:02,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:02,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:02,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:04:02,858 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:04:02,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:02,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:02,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:02,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:02,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:04:02,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:04:02,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:02,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:04:02,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:04:02,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:02,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:02,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:02,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:04:02,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:02,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:02,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:02,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:04:02,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:02,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:02,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:02,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:02,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:02,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:02,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:04:02,980 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:04:02,986 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:04:03,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:03,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:03,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:03,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:03,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:03,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:03,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:03,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:03,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:04:03,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:03,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:03,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:03,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:03,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:03,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:03,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:03,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:03,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:04:03,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:03,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:03,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:04:03,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:03,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:03,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:03,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:04:03,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:03,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:04:03,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:03,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:03,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:03,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:03,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:04:03,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:04:03,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:03,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:04:03,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:04:03,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:04:03,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:04:03,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:04:03,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:03,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:04:03,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:04:03,106 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:04:03,155 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-20 10:04:03,156 INFO L444 ModelExtractionUtils]: 7 out of 34 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78a903fd-00b5-457a-9346-920ddd2c55d3/bin/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:04:03,165 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:04:03,167 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 10:04:03,168 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:04:03,168 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2, ULTIMATE.start_cstrreplace_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 - 1*ULTIMATE.start_cstrreplace_~p~0.offset Supporting invariants [] [2019-11-20 10:04:03,191 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-11-20 10:04:03,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 10:04:03,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:04:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:04:03,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 10:04:03,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:04:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:04:03,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 10:04:03,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:04:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:04:03,301 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 10:04:03,302 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-20 10:04:03,362 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 16 states and 21 transitions. Complement of second has 5 states. [2019-11-20 10:04:03,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 10:04:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 10:04:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-11-20 10:04:03,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 4 letters. [2019-11-20 10:04:03,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:04:03,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-20 10:04:03,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:04:03,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 8 letters. [2019-11-20 10:04:03,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:04:03,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2019-11-20 10:04:03,368 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:04:03,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2019-11-20 10:04:03,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 10:04:03,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 10:04:03,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 10:04:03,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:04:03,369 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:04:03,369 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:04:03,369 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:04:03,369 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 10:04:03,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:04:03,369 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:04:03,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 10:04:03,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:04:03 BoogieIcfgContainer [2019-11-20 10:04:03,377 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:04:03,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:04:03,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:04:03,377 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:04:03,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:03:56" (3/4) ... [2019-11-20 10:04:03,382 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:04:03,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:04:03,384 INFO L168 Benchmark]: Toolchain (without parser) took 8202.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 950.1 MB in the beginning and 887.4 MB in the end (delta: 62.7 MB). Peak memory consumption was 232.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:04:03,384 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:04:03,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:04:03,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:04:03,387 INFO L168 Benchmark]: Boogie Preprocessor took 31.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:04:03,387 INFO L168 Benchmark]: RCFGBuilder took 515.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:04:03,388 INFO L168 Benchmark]: BuchiAutomizer took 6820.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 1.1 GB in the beginning and 887.4 MB in the end (delta: 193.5 MB). Peak memory consumption was 241.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:04:03,389 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 887.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:04:03,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 774.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 515.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6820.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 48.2 MB). Free memory was 1.1 GB in the beginning and 887.4 MB in the end (delta: 193.5 MB). Peak memory consumption was 241.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 887.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * p and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 6.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 47 SDslu, 42 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital337 mio100 ax111 hnf98 lsp59 ukn129 mio100 lsp38 div114 bol100 ite100 ukn100 eq163 hnf84 smp97 dnf141 smp77 tf100 neg100 sie102 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...