./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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 c15bd857267d499e7ecc6e455c2b5fbe7515d7da ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:58,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:58,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:58,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:58,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:58,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:58,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:58,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:58,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:58,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:58,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:58,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:58,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:58,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:58,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:58,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:58,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:58,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:58,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:58,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:58,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:58,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:58,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:58,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:58,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:58,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:58,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:58,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:58,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:58,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:58,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:58,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:58,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:58,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:58,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:58,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:58,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:58,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:58,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:58,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:58,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:58,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:56:58,862 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:58,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:58,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:58,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:58,864 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:58,864 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:56:58,864 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:56:58,864 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:56:58,865 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:56:58,865 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:56:58,865 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:56:58,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:58,865 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:58,866 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:56:58,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:58,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:58,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:58,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:56:58,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:56:58,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:56:58,867 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:58,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:58,867 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:56:58,868 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:58,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:56:58,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:58,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:58,869 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:56:58,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:58,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:58,869 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:56:58,870 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:56:58,870 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_d45c63bb-880a-4814-8cb8-a3b4102ff099/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 -> c15bd857267d499e7ecc6e455c2b5fbe7515d7da [2019-11-25 08:56:59,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:59,057 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:59,060 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:59,062 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:59,062 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:59,063 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2019-11-25 08:56:59,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/data/c3625763c/5b48974a6a154299a79ed53c458bff7e/FLAGe4690817a [2019-11-25 08:56:59,523 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:59,523 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2019-11-25 08:56:59,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/data/c3625763c/5b48974a6a154299a79ed53c458bff7e/FLAGe4690817a [2019-11-25 08:56:59,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/data/c3625763c/5b48974a6a154299a79ed53c458bff7e [2019-11-25 08:56:59,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:59,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:59,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:59,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:59,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:59,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:59" (1/1) ... [2019-11-25 08:56:59,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3567fc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:59, skipping insertion in model container [2019-11-25 08:56:59,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:59" (1/1) ... [2019-11-25 08:56:59,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:59,922 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:00,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:00,322 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:00,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:00,421 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:00,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00 WrapperNode [2019-11-25 08:57:00,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:00,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:00,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:00,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:00,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:00,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:00,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:00,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:00,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... [2019-11-25 08:57:00,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:00,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:00,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:00,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:00,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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 [2019-11-25 08:57:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:57:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:57:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:57:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:57:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:00,891 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:00,891 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-25 08:57:00,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:00 BoogieIcfgContainer [2019-11-25 08:57:00,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:00,892 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:57:00,892 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:57:00,895 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:57:00,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:00,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:56:59" (1/3) ... [2019-11-25 08:57:00,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54904fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:00, skipping insertion in model container [2019-11-25 08:57:00,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:00,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:00" (2/3) ... [2019-11-25 08:57:00,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54904fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:00, skipping insertion in model container [2019-11-25 08:57:00,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:00,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:00" (3/3) ... [2019-11-25 08:57:00,899 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcat-alloca-2.i [2019-11-25 08:57:00,963 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:57:00,964 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:57:00,965 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:57:00,965 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:00,965 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:00,965 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:57:00,965 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:00,965 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:57:00,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-25 08:57:01,009 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-25 08:57:01,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:01,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:01,018 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:01,018 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:01,019 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:57:01,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-25 08:57:01,021 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-25 08:57:01,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:01,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:01,021 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:57:01,021 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:01,028 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 23#L527true assume !(main_~length1~0 < 1); 7#L527-2true assume !(main_~length2~0 < 2); 19#L530-1true assume !(main_~length3~0 < 1); 11#L533-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 5#L540-3true [2019-11-25 08:57:01,029 INFO L796 eck$LassoCheckResult]: Loop: 5#L540-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet13, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 22#L540-2true main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 5#L540-3true [2019-11-25 08:57:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:01,035 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-11-25 08:57:01,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:01,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996088510] [2019-11-25 08:57:01,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:01,188 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:01,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:01,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2019-11-25 08:57:01,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:01,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591805295] [2019-11-25 08:57:01,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:01,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:01,209 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2019-11-25 08:57:01,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:01,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087440154] [2019-11-25 08:57:01,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:01,262 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:01,589 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-11-25 08:57:01,704 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:01,706 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:01,706 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:01,706 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:01,706 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:01,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:01,707 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:01,707 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:01,707 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration1_Lasso [2019-11-25 08:57:01,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:01,708 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:01,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,942 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2019-11-25 08:57:01,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:01,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:02,347 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:02,354 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,363 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 [2019-11-25 08:57:02,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,369 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 [2019-11-25 08:57:02,374 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,393 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 [2019-11-25 08:57:02,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,397 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 [2019-11-25 08:57:02,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,409 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 [2019-11-25 08:57:02,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:02,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,435 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 [2019-11-25 08:57:02,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,463 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 [2019-11-25 08:57:02,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:02,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,486 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 [2019-11-25 08:57:02,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,494 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 [2019-11-25 08:57:02,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,519 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 [2019-11-25 08:57:02,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:02,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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 [2019-11-25 08:57:02,530 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 [2019-11-25 08:57:02,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:02,543 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,563 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 [2019-11-25 08:57:02,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:02,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,591 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 [2019-11-25 08:57:02,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:02,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,618 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 [2019-11-25 08:57:02,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,624 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,633 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 [2019-11-25 08:57:02,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:57:02,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,662 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,689 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 [2019-11-25 08:57:02,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,712 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 [2019-11-25 08:57:02,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:02,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:02,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,730 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 [2019-11-25 08:57:02,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:02,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:02,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:02,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:02,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:02,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:02,757 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:02,902 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-25 08:57:02,902 INFO L444 ModelExtractionUtils]: 18 out of 31 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:02,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:02,930 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:57:02,931 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:02,931 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 [] [2019-11-25 08:57:02,953 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-25 08:57:02,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:02,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:57:02,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:03,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:57:03,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:03,045 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 [2019-11-25 08:57:03,047 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 3 states. [2019-11-25 08:57:03,102 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 3 states. Result 52 states and 74 transitions. Complement of second has 7 states. [2019-11-25 08:57:03,103 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 [2019-11-25 08:57:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:57:03,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2019-11-25 08:57:03,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-25 08:57:03,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:03,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-25 08:57:03,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:03,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-25 08:57:03,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:03,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 74 transitions. [2019-11-25 08:57:03,114 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-25 08:57:03,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 17 states and 24 transitions. [2019-11-25 08:57:03,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-25 08:57:03,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-25 08:57:03,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2019-11-25 08:57:03,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:03,124 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-25 08:57:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2019-11-25 08:57:03,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-25 08:57:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-25 08:57:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-11-25 08:57:03,154 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-25 08:57:03,154 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-25 08:57:03,154 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:57:03,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2019-11-25 08:57:03,158 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-25 08:57:03,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:03,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:03,159 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:03,160 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:03,160 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 159#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 160#L527 assume !(main_~length1~0 < 1); 156#L527-2 assume !(main_~length2~0 < 2); 157#L530-1 assume !(main_~length3~0 < 1); 161#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 151#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 153#L540-4 main_~i~1 := 0; 155#L545-3 [2019-11-25 08:57:03,161 INFO L796 eck$LassoCheckResult]: Loop: 155#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 158#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 155#L545-3 [2019-11-25 08:57:03,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:03,161 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2019-11-25 08:57:03,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:03,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837840083] [2019-11-25 08:57:03,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:03,224 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:03,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:03,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2019-11-25 08:57:03,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:03,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653197052] [2019-11-25 08:57:03,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:03,252 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:03,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2019-11-25 08:57:03,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:03,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835726337] [2019-11-25 08:57:03,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:03,288 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:03,572 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-11-25 08:57:03,650 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:03,651 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:03,651 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:03,651 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:03,651 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:03,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:03,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:03,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:03,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration2_Lasso [2019-11-25 08:57:03,652 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:03,652 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:03,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,793 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-11-25 08:57:03,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:03,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:04,195 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:04,195 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:04,210 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 Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:04,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:04,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:04,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:04,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:04,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:04,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:04,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:57:04,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:04,237 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 [2019-11-25 08:57:04,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:04,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:04,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:04,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:04,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:04,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:04,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:04,266 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 [2019-11-25 08:57:04,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:04,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:04,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:04,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:04,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:04,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:04,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:04,319 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-25 08:57:04,319 INFO L444 ModelExtractionUtils]: 18 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:04,323 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:04,330 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-25 08:57:04,330 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:04,331 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 - 1*ULTIMATE.start_main_~length2~0 >= 0] [2019-11-25 08:57:04,353 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2019-11-25 08:57:04,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:57:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:04,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:57:04,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:04,443 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:57:04,444 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-25 08:57:04,444 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:57:04,463 INFO L567 ElimStorePlain]: treesize reduction 10, result has 61.5 percent of original size [2019-11-25 08:57:04,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:57:04,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:11, output treesize:7 [2019-11-25 08:57:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:04,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:57:04,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:04,512 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 [2019-11-25 08:57:04,512 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-25 08:57:04,565 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 24 states and 36 transitions. Complement of second has 7 states. [2019-11-25 08:57:04,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:57:04,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:57:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2019-11-25 08:57:04,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-25 08:57:04,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:04,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-25 08:57:04,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:04,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2019-11-25 08:57:04,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:04,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2019-11-25 08:57:04,569 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-25 08:57:04,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 26 transitions. [2019-11-25 08:57:04,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-25 08:57:04,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-25 08:57:04,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2019-11-25 08:57:04,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:04,570 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-11-25 08:57:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2019-11-25 08:57:04,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-25 08:57:04,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:57:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2019-11-25 08:57:04,572 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-11-25 08:57:04,572 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-11-25 08:57:04,572 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:57:04,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2019-11-25 08:57:04,573 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-25 08:57:04,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:04,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:04,574 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:04,574 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:04,574 INFO L794 eck$LassoCheckResult]: Stem: 294#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 290#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 291#L527 assume !(main_~length1~0 < 1); 286#L527-2 assume !(main_~length2~0 < 2); 287#L530-1 assume !(main_~length3~0 < 1); 292#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 281#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 283#L540-4 main_~i~1 := 0; 285#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 293#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 280#L517-3 [2019-11-25 08:57:04,575 INFO L796 eck$LassoCheckResult]: Loop: 280#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 278#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 280#L517-3 [2019-11-25 08:57:04,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:04,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2019-11-25 08:57:04,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:04,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071105961] [2019-11-25 08:57:04,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:04,627 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071105961] [2019-11-25 08:57:04,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:04,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:57:04,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486227231] [2019-11-25 08:57:04,630 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:57:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:04,631 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2019-11-25 08:57:04,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:04,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422274423] [2019-11-25 08:57:04,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:04,638 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:04,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:04,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:57:04,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:57:04,680 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-25 08:57:04,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:04,707 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2019-11-25 08:57:04,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:57:04,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2019-11-25 08:57:04,710 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-25 08:57:04,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2019-11-25 08:57:04,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-25 08:57:04,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-25 08:57:04,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2019-11-25 08:57:04,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:04,711 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-25 08:57:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2019-11-25 08:57:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-25 08:57:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:57:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-11-25 08:57:04,713 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-25 08:57:04,713 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-25 08:57:04,713 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:57:04,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-11-25 08:57:04,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-25 08:57:04,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:04,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:04,715 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:04,715 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:04,715 INFO L794 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 334#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 335#L527 assume !(main_~length1~0 < 1); 330#L527-2 assume !(main_~length2~0 < 2); 331#L530-1 assume !(main_~length3~0 < 1); 336#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 325#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 327#L540-4 main_~i~1 := 0; 329#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 332#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 333#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 337#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 324#L517-3 [2019-11-25 08:57:04,715 INFO L796 eck$LassoCheckResult]: Loop: 324#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 322#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 324#L517-3 [2019-11-25 08:57:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:04,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2019-11-25 08:57:04,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:04,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128008029] [2019-11-25 08:57:04,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:04,774 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:04,774 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2019-11-25 08:57:04,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:04,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591929963] [2019-11-25 08:57:04,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:04,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:04,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017530, now seen corresponding path program 1 times [2019-11-25 08:57:04,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:04,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180463451] [2019-11-25 08:57:04,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:05,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180463451] [2019-11-25 08:57:05,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056828842] [2019-11-25 08:57:05,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:57:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:05,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-25 08:57:05,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:05,244 INFO L343 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2019-11-25 08:57:05,244 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-11-25 08:57:05,245 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:57:05,261 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:57:05,262 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-11-25 08:57:05,263 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:54, output treesize:38 [2019-11-25 08:57:05,303 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-25 08:57:05,329 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:57:05,329 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 46 [2019-11-25 08:57:05,330 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:57:05,362 INFO L567 ElimStorePlain]: treesize reduction 33, result has 42.1 percent of original size [2019-11-25 08:57:05,364 INFO L496 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:57:05,364 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:48, output treesize:3 [2019-11-25 08:57:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:05,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:57:05,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-25 08:57:05,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992346095] [2019-11-25 08:57:05,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:05,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-25 08:57:05,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-25 08:57:05,393 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 15 states. [2019-11-25 08:57:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:05,847 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2019-11-25 08:57:05,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-25 08:57:05,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2019-11-25 08:57:05,849 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-25 08:57:05,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 35 transitions. [2019-11-25 08:57:05,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-25 08:57:05,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-25 08:57:05,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2019-11-25 08:57:05,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:05,851 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-25 08:57:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2019-11-25 08:57:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2019-11-25 08:57:05,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-25 08:57:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-25 08:57:05,854 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-25 08:57:05,854 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-25 08:57:05,854 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-25 08:57:05,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2019-11-25 08:57:05,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-25 08:57:05,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:05,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:05,855 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:05,855 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:05,856 INFO L794 eck$LassoCheckResult]: Stem: 456#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 451#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 452#L527 assume !(main_~length1~0 < 1); 445#L527-2 assume !(main_~length2~0 < 2); 446#L530-1 assume !(main_~length3~0 < 1); 453#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 440#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 442#L540-4 main_~i~1 := 0; 444#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 449#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 450#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 454#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 459#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 438#L517-1 assume !(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2; 439#L519-2 [2019-11-25 08:57:05,856 INFO L796 eck$LassoCheckResult]: Loop: 439#L519-2 cstrcat_#t~post4.base, cstrcat_#t~post4.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post4.base, 1 + cstrcat_#t~post4.offset;cstrcat_#t~post5.base, cstrcat_#t~post5.offset := cstrcat_~s2.base, cstrcat_~s2.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#t~post5.base, 1 + cstrcat_#t~post5.offset;call cstrcat_#t~mem6 := read~int(cstrcat_#t~post5.base, cstrcat_#t~post5.offset, 1);call write~int(cstrcat_#t~mem6, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, 1); 458#L519 assume !!(0 != cstrcat_#t~mem6);havoc cstrcat_#t~post4.base, cstrcat_#t~post4.offset;havoc cstrcat_#t~post5.base, cstrcat_#t~post5.offset;havoc cstrcat_#t~mem6; 439#L519-2 [2019-11-25 08:57:05,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017532, now seen corresponding path program 1 times [2019-11-25 08:57:05,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:05,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962509671] [2019-11-25 08:57:05,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:05,925 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:05,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:05,925 INFO L82 PathProgramCache]: Analyzing trace with hash 3206, now seen corresponding path program 1 times [2019-11-25 08:57:05,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:05,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343071422] [2019-11-25 08:57:05,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:05,941 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:05,942 INFO L82 PathProgramCache]: Analyzing trace with hash 405254793, now seen corresponding path program 1 times [2019-11-25 08:57:05,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:05,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857751807] [2019-11-25 08:57:05,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:57:06,112 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857751807] [2019-11-25 08:57:06,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:06,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:57:06,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570036972] [2019-11-25 08:57:06,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:06,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:57:06,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:57:06,201 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand 7 states. [2019-11-25 08:57:06,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:06,284 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2019-11-25 08:57:06,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:57:06,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2019-11-25 08:57:06,286 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-25 08:57:06,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 42 transitions. [2019-11-25 08:57:06,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-11-25 08:57:06,287 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-11-25 08:57:06,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2019-11-25 08:57:06,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:06,288 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2019-11-25 08:57:06,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2019-11-25 08:57:06,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-11-25 08:57:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-25 08:57:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2019-11-25 08:57:06,291 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2019-11-25 08:57:06,291 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2019-11-25 08:57:06,291 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-25 08:57:06,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2019-11-25 08:57:06,292 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-25 08:57:06,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:06,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:06,293 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:06,293 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:57:06,293 INFO L794 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 529#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 530#L527 assume !(main_~length1~0 < 1); 523#L527-2 assume !(main_~length2~0 < 2); 524#L530-1 assume !(main_~length3~0 < 1); 531#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 517#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 519#L540-4 main_~i~1 := 0; 522#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 543#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 542#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 541#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 540#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 539#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 516#L517-3 [2019-11-25 08:57:06,293 INFO L796 eck$LassoCheckResult]: Loop: 516#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 515#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 516#L517-3 [2019-11-25 08:57:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:06,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1898962205, now seen corresponding path program 2 times [2019-11-25 08:57:06,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:06,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808083004] [2019-11-25 08:57:06,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:06,316 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:06,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:06,317 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 3 times [2019-11-25 08:57:06,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:06,317 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545996433] [2019-11-25 08:57:06,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:06,325 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:06,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:06,326 INFO L82 PathProgramCache]: Analyzing trace with hash 458423656, now seen corresponding path program 2 times [2019-11-25 08:57:06,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:06,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446504357] [2019-11-25 08:57:06,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:06,375 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Exception during sending of exit command (exit): Stream closed [2019-11-25 08:57:06,882 WARN L192 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 122 [2019-11-25 08:57:07,044 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-25 08:57:07,058 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:57:07,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:57:07,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:57:07,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:57:07,058 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:57:07,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:07,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:57:07,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:57:07,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration6_Lasso [2019-11-25 08:57:07,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:57:07,059 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:57:07,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,388 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-11-25 08:57:07,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:57:07,677 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-11-25 08:57:08,004 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:57:08,004 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:08,013 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 [2019-11-25 08:57:08,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:08,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:57:08,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:08,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:08,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:08,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:57:08,017 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 [2019-11-25 08:57:08,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:08,024 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 [2019-11-25 08:57:08,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:08,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:08,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:08,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:08,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:08,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:57:08,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:08,043 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 [2019-11-25 08:57:08,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:08,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:08,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:08,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:08,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:08,055 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 [2019-11-25 08:57:08,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:08,068 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 [2019-11-25 08:57:08,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:57:08,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:57:08,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:57:08,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:57:08,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:57:08,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:08,104 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:57:08,168 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2019-11-25 08:57:08,168 INFO L444 ModelExtractionUtils]: 37 out of 55 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d45c63bb-880a-4814-8cb8-a3b4102ff099/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) [2019-11-25 08:57:08,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:57:08,177 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:57:08,178 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:57:08,178 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_3, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_3 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2019-11-25 08:57:08,217 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2019-11-25 08:57:08,219 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:57:08,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:08,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:57:08,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:08,281 WARN L253 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:57:08,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:57:08,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:08,293 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 [2019-11-25 08:57:08,293 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15 Second operand 4 states. [2019-11-25 08:57:08,338 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 40 states and 52 transitions. Complement of second has 7 states. [2019-11-25 08:57:08,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:57:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:57:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2019-11-25 08:57:08,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-25 08:57:08,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:08,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-25 08:57:08,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:08,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-25 08:57:08,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:57:08,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2019-11-25 08:57:08,342 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:08,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2019-11-25 08:57:08,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:57:08,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:57:08,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:57:08,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:08,342 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:08,342 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:08,342 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:08,342 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-25 08:57:08,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:08,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:08,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:57:08,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:57:08 BoogieIcfgContainer [2019-11-25 08:57:08,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:57:08,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:08,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:08,349 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:08,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:00" (3/4) ... [2019-11-25 08:57:08,353 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:57:08,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:08,354 INFO L168 Benchmark]: Toolchain (without parser) took 8481.38 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 332.9 MB). Free memory was 939.4 MB in the beginning and 962.6 MB in the end (delta: -23.2 MB). Peak memory consumption was 309.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:08,354 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:08,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -204.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:08,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.19 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. [2019-11-25 08:57:08,356 INFO L168 Benchmark]: Boogie Preprocessor took 37.96 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. [2019-11-25 08:57:08,356 INFO L168 Benchmark]: RCFGBuilder took 384.19 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:08,357 INFO L168 Benchmark]: BuchiAutomizer took 7456.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 165.2 MB). Free memory was 1.1 GB in the beginning and 962.6 MB in the end (delta: 153.7 MB). Peak memory consumption was 318.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:08,357 INFO L168 Benchmark]: Witness Printer took 3.99 ms. Allocated memory is still 1.4 GB. Free memory is still 962.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:08,359 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 550.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -204.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.19 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 37.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 384.19 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7456.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 165.2 MB). Free memory was 1.1 GB in the beginning and 962.6 MB in the end (delta: 153.7 MB). Peak memory consumption was 318.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.99 ms. Allocated memory is still 1.4 GB. Free memory is still 962.6 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 - 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 6 terminating modules (3 trivial, 3 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[nondetString2] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.3s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 6.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 32 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 173 SDslu, 187 SDs, 0 SdLazy, 202 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital180 mio100 ax111 hnf98 lsp83 ukn74 mio100 lsp60 div100 bol100 ite100 ukn100 eq165 hnf91 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms 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...