./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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 0.2.0-a4ecdab [2020-11-30 00:35:51,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:35:51,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:35:51,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:35:51,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:35:51,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:35:51,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:35:51,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:35:51,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:35:51,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:35:51,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:35:51,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:35:51,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:35:51,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:35:51,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:35:51,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:35:51,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:35:51,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:35:51,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:35:51,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:35:51,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:35:51,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:35:51,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:35:51,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:35:51,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:35:51,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:35:51,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:35:51,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:35:51,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:35:51,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:35:51,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:35:51,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:35:51,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:35:51,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:35:51,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:35:51,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:35:51,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:35:51,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:35:51,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:35:51,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:35:51,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:35:51,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:35:52,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:35:52,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:35:52,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:35:52,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:35:52,008 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:35:52,009 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:35:52,009 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:35:52,009 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:35:52,010 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:35:52,010 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:35:52,011 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:35:52,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:35:52,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:35:52,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:35:52,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:35:52,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:35:52,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:35:52,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:35:52,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:35:52,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:35:52,014 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:35:52,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:35:52,015 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:35:52,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:35:52,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:35:52,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:35:52,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:35:52,016 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:35:52,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:35:52,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:35:52,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:35:52,019 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:35:52,020 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:35:52,021 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c15bd857267d499e7ecc6e455c2b5fbe7515d7da [2020-11-30 00:35:52,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:35:52,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:35:52,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:35:52,459 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:35:52,461 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:35:52,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2020-11-30 00:35:52,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/data/b19f1d7d7/60d8db77d677460286c804631dd901d4/FLAG066e6839d [2020-11-30 00:35:53,310 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:35:53,311 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2020-11-30 00:35:53,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/data/b19f1d7d7/60d8db77d677460286c804631dd901d4/FLAG066e6839d [2020-11-30 00:35:53,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/data/b19f1d7d7/60d8db77d677460286c804631dd901d4 [2020-11-30 00:35:53,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:35:53,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:35:53,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:53,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:35:53,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:35:53,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:53" (1/1) ... [2020-11-30 00:35:53,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc89fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:53, skipping insertion in model container [2020-11-30 00:35:53,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:53" (1/1) ... [2020-11-30 00:35:53,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:35:53,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:35:54,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:54,056 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:35:54,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:54,224 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:35:54,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54 WrapperNode [2020-11-30 00:35:54,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:54,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:54,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:35:54,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:35:54,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:54,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:35:54,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:35:54,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:35:54,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... [2020-11-30 00:35:54,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:35:54,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:35:54,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:35:54,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:35:54,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:35:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:35:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:35:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:35:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:35:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:35:55,143 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:35:55,144 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 00:35:55,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:55 BoogieIcfgContainer [2020-11-30 00:35:55,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:35:55,148 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:35:55,148 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:35:55,152 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:35:55,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:55,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:35:53" (1/3) ... [2020-11-30 00:35:55,155 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c2a1baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:35:55, skipping insertion in model container [2020-11-30 00:35:55,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:55,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:54" (2/3) ... [2020-11-30 00:35:55,156 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c2a1baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:35:55, skipping insertion in model container [2020-11-30 00:35:55,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:35:55,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:55" (3/3) ... [2020-11-30 00:35:55,159 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrcat-alloca-2.i [2020-11-30 00:35:55,250 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:35:55,251 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:35:55,251 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:35:55,251 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:35:55,251 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:35:55,251 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:35:55,252 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:35:55,252 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:35:55,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-11-30 00:35:55,312 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-30 00:35:55,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:55,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:55,320 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:35:55,320 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:35:55,321 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:35:55,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-11-30 00:35:55,326 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-30 00:35:55,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:55,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:55,328 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:35:55,328 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:35:55,336 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 [2020-11-30 00:35:55,337 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 [2020-11-30 00:35:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:55,347 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-11-30 00:35:55,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:55,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264549061] [2020-11-30 00:35:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:55,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:55,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:55,596 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:55,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:55,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2020-11-30 00:35:55,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:55,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8656180] [2020-11-30 00:35:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:55,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:55,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:55,654 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:55,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:55,665 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2020-11-30 00:35:55,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:55,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458930925] [2020-11-30 00:35:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:55,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:55,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:55,771 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:56,283 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-11-30 00:35:56,470 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-11-30 00:35:56,489 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:35:56,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:35:56,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:35:56,490 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:35:56,490 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:35:56,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:56,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:35:56,491 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:35:56,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration1_Lasso [2020-11-30 00:35:56,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:35:56,492 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:35:56,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,792 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-30 00:35:56,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:56,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:57,329 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:35:57,333 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:35:57,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:35:57,395 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:35:57,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:57,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:35:57,503 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:57,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,618 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 [2020-11-30 00:35:57,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:57,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:35:57,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:35:57,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,699 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:57,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:35:57,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:57,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:57,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:57,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,881 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:57,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:57,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:57,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:57,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:57,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:57,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:57,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:57,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:35:57,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:58,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:58,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:58,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:58,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:58,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:58,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:58,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,098 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:58,098 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 [2020-11-30 00:35:58,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:58,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:58,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:58,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:58,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:58,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:58,210 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 [2020-11-30 00:35:58,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:58,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:58,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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 [2020-11-30 00:35:58,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:58,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:58,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:35:58,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:58,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:58,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:58,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:35:58,330 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:58,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:58,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:35:58,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:35:58,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:58,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:58,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:35:58,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:35:58,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:35:58,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:35:58,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:35:58,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:35:58,464 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 [2020-11-30 00:35:58,482 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:35:58,561 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-30 00:35:58,561 INFO L444 ModelExtractionUtils]: 17 out of 31 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:35:58,595 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:58,604 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:35:58,605 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:35:58,605 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 [] [2020-11-30 00:35:58,673 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-11-30 00:35:58,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:58,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:35:58,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:35:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:58,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:35:58,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:35:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:35:58,839 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:35:58,840 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 3 states. [2020-11-30 00:35:58,914 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 3 states. Result 52 states and 74 transitions. Complement of second has 7 states. [2020-11-30 00:35:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:35:58,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:35:58,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2020-11-30 00:35:58,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-30 00:35:58,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:58,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:35:58,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:58,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-30 00:35:58,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:35:58,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 74 transitions. [2020-11-30 00:35:58,939 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-30 00:35:58,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 17 states and 24 transitions. [2020-11-30 00:35:58,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-30 00:35:58,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:35:58,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2020-11-30 00:35:58,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:35:58,948 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-11-30 00:35:58,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2020-11-30 00:35:58,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-30 00:35:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 00:35:58,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2020-11-30 00:35:58,981 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-11-30 00:35:58,981 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-11-30 00:35:58,981 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:35:58,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2020-11-30 00:35:58,984 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-30 00:35:58,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:35:58,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:35:58,986 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:35:58,986 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:35:58,987 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 [2020-11-30 00:35:58,988 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 [2020-11-30 00:35:58,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:58,989 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2020-11-30 00:35:58,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:58,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635768449] [2020-11-30 00:35:58,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:59,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:59,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:59,050 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:59,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:59,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2020-11-30 00:35:59,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:59,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128579895] [2020-11-30 00:35:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:59,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:59,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:59,089 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:59,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:59,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2020-11-30 00:35:59,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:59,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804423732] [2020-11-30 00:35:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:59,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:59,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:59,157 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:59,551 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-11-30 00:35:59,645 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:35:59,645 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:35:59,645 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:35:59,645 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:35:59,645 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:35:59,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:35:59,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:35:59,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:35:59,646 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration2_Lasso [2020-11-30 00:35:59,646 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:35:59,646 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:35:59,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,852 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-30 00:35:59,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:35:59,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:00,104 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-11-30 00:36:00,420 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:36:00,421 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:36:00,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:00,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:00,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:00,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:00,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:00,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:00,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:00,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:00,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:36:00,486 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 [2020-11-30 00:36:00,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:00,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:00,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:00,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:00,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:00,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:00,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:36:00,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:00,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:00,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:00,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:00,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:00,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:00,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:00,550 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 [2020-11-30 00:36:00,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:36:00,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:00,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:00,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:00,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:00,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:00,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:00,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:00,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:36:00,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:00,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:00,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:00,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:00,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:00,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:00,664 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 [2020-11-30 00:36:00,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:36:00,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:00,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:00,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:00,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:00,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:00,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:00,737 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 [2020-11-30 00:36:00,759 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:36:00,801 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-30 00:36:00,801 INFO L444 ModelExtractionUtils]: 21 out of 34 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/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) [2020-11-30 00:36:00,807 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 [2020-11-30 00:36:00,812 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:36:00,812 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:36:00,812 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2020-11-30 00:36:00,896 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2020-11-30 00:36:00,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:36:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:00,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:36:00,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:01,021 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:36:01,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:01,060 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 [2020-11-30 00:36:01,060 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-30 00:36:01,139 INFO L75 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. [2020-11-30 00:36:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:36:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:36:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2020-11-30 00:36:01,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:36:01,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:01,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:36:01,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:01,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2020-11-30 00:36:01,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:01,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2020-11-30 00:36:01,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:36:01,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 26 transitions. [2020-11-30 00:36:01,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-30 00:36:01,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-30 00:36:01,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2020-11-30 00:36:01,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:01,146 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-11-30 00:36:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2020-11-30 00:36:01,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 00:36:01,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 00:36:01,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2020-11-30 00:36:01,148 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-11-30 00:36:01,148 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-11-30 00:36:01,148 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:36:01,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2020-11-30 00:36:01,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:36:01,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:01,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:01,150 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:01,150 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:36:01,150 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 289#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; 290#L527 assume !(main_~length1~0 < 1); 285#L527-2 assume !(main_~length2~0 < 2); 286#L530-1 assume !(main_~length3~0 < 1); 291#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; 280#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 282#L540-4 main_~i~1 := 0; 284#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 292#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; 279#L517-3 [2020-11-30 00:36:01,154 INFO L796 eck$LassoCheckResult]: Loop: 279#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 277#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 279#L517-3 [2020-11-30 00:36:01,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:01,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2020-11-30 00:36:01,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:01,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866980825] [2020-11-30 00:36:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:01,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:01,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866980825] [2020-11-30 00:36:01,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:01,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:36:01,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653835300] [2020-11-30 00:36:01,246 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:36:01,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:01,246 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2020-11-30 00:36:01,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:01,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140389822] [2020-11-30 00:36:01,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:01,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:01,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:01,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:01,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:36:01,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:36:01,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:36:01,305 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-11-30 00:36:01,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:01,331 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-11-30 00:36:01,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:36:01,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-11-30 00:36:01,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:36:01,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2020-11-30 00:36:01,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-30 00:36:01,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-30 00:36:01,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-11-30 00:36:01,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:01,334 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-30 00:36:01,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-11-30 00:36:01,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-11-30 00:36:01,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 00:36:01,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-11-30 00:36:01,336 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-30 00:36:01,336 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-30 00:36:01,336 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:36:01,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-11-30 00:36:01,337 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:36:01,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:01,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:01,338 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:01,338 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:36:01,338 INFO L794 eck$LassoCheckResult]: Stem: 337#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 333#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; 334#L527 assume !(main_~length1~0 < 1); 329#L527-2 assume !(main_~length2~0 < 2); 330#L530-1 assume !(main_~length3~0 < 1); 335#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; 324#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 326#L540-4 main_~i~1 := 0; 328#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; 331#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 332#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 336#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; 323#L517-3 [2020-11-30 00:36:01,338 INFO L796 eck$LassoCheckResult]: Loop: 323#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 321#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; 323#L517-3 [2020-11-30 00:36:01,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:01,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2020-11-30 00:36:01,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:01,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69460619] [2020-11-30 00:36:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:01,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:01,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:01,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:01,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:01,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2020-11-30 00:36:01,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:01,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820294901] [2020-11-30 00:36:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:01,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:01,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:01,393 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:01,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:01,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017530, now seen corresponding path program 1 times [2020-11-30 00:36:01,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:01,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349782589] [2020-11-30 00:36:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:01,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349782589] [2020-11-30 00:36:01,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944346395] [2020-11-30 00:36:01,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:36:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:01,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjunts are in the unsatisfiable core [2020-11-30 00:36:01,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:02,137 INFO L350 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2020-11-30 00:36:02,137 INFO L384 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 [2020-11-30 00:36:02,138 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:36:02,155 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:36:02,171 INFO L545 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. [2020-11-30 00:36:02,171 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:54, output treesize:38 [2020-11-30 00:36:02,447 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-30 00:36:02,483 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:36:02,484 INFO L384 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 [2020-11-30 00:36:02,485 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:36:02,505 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:36:02,511 INFO L545 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:36:02,511 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:48, output treesize:3 [2020-11-30 00:36:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:02,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:36:02,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-11-30 00:36:02,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276775575] [2020-11-30 00:36:02,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:36:02,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 00:36:02,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-11-30 00:36:02,558 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 15 states. [2020-11-30 00:36:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:04,570 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2020-11-30 00:36:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 00:36:04,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2020-11-30 00:36:04,572 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-30 00:36:04,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 35 transitions. [2020-11-30 00:36:04,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-11-30 00:36:04,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-11-30 00:36:04,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-11-30 00:36:04,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:04,573 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-11-30 00:36:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-11-30 00:36:04,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2020-11-30 00:36:04,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 00:36:04,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-11-30 00:36:04,580 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-11-30 00:36:04,580 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-11-30 00:36:04,580 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:36:04,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2020-11-30 00:36:04,581 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-30 00:36:04,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:04,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:04,583 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:04,583 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:36:04,583 INFO L794 eck$LassoCheckResult]: Stem: 457#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 452#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; 453#L527 assume !(main_~length1~0 < 1); 446#L527-2 assume !(main_~length2~0 < 2); 447#L530-1 assume !(main_~length3~0 < 1); 454#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; 441#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 443#L540-4 main_~i~1 := 0; 445#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; 450#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 451#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 455#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; 460#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 439#L517-1 assume !(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2; 440#L519-2 [2020-11-30 00:36:04,583 INFO L796 eck$LassoCheckResult]: Loop: 440#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); 459#L519 assume !!(0 != cstrcat_#t~mem6);havoc cstrcat_#t~post5.base, cstrcat_#t~post5.offset;havoc cstrcat_#t~post4.base, cstrcat_#t~post4.offset;havoc cstrcat_#t~mem6; 440#L519-2 [2020-11-30 00:36:04,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:04,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017532, now seen corresponding path program 1 times [2020-11-30 00:36:04,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:04,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13837475] [2020-11-30 00:36:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:04,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:04,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:04,656 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:04,662 INFO L82 PathProgramCache]: Analyzing trace with hash 3206, now seen corresponding path program 1 times [2020-11-30 00:36:04,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:04,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427800833] [2020-11-30 00:36:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:04,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:04,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:04,685 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:04,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:04,686 INFO L82 PathProgramCache]: Analyzing trace with hash 405254793, now seen corresponding path program 1 times [2020-11-30 00:36:04,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:04,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033120627] [2020-11-30 00:36:04,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:36:04,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033120627] [2020-11-30 00:36:04,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:04,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:36:04,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178619252] [2020-11-30 00:36:05,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:36:05,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:36:05,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:36:05,049 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-11-30 00:36:05,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:05,172 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2020-11-30 00:36:05,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:36:05,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2020-11-30 00:36:05,174 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-30 00:36:05,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 42 transitions. [2020-11-30 00:36:05,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-30 00:36:05,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-11-30 00:36:05,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2020-11-30 00:36:05,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:05,176 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2020-11-30 00:36:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2020-11-30 00:36:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-11-30 00:36:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 00:36:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2020-11-30 00:36:05,181 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-11-30 00:36:05,181 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-11-30 00:36:05,181 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-30 00:36:05,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2020-11-30 00:36:05,182 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-30 00:36:05,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:05,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:05,183 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:05,183 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:36:05,183 INFO L794 eck$LassoCheckResult]: Stem: 536#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 530#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; 531#L527 assume !(main_~length1~0 < 1); 524#L527-2 assume !(main_~length2~0 < 2); 525#L530-1 assume !(main_~length3~0 < 1); 532#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; 518#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 520#L540-4 main_~i~1 := 0; 523#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; 544#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 543#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; 542#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 541#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 540#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; 517#L517-3 [2020-11-30 00:36:05,183 INFO L796 eck$LassoCheckResult]: Loop: 517#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 516#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; 517#L517-3 [2020-11-30 00:36:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:05,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1898962205, now seen corresponding path program 2 times [2020-11-30 00:36:05,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:05,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223560107] [2020-11-30 00:36:05,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:05,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:05,248 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:05,253 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:05,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:05,254 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 3 times [2020-11-30 00:36:05,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:05,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966993465] [2020-11-30 00:36:05,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:05,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:05,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:05,268 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:05,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:05,273 INFO L82 PathProgramCache]: Analyzing trace with hash 458423656, now seen corresponding path program 2 times [2020-11-30 00:36:05,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:05,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908620859] [2020-11-30 00:36:05,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:05,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:05,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:05,344 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:06,499 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 149 DAG size of output: 122 [2020-11-30 00:36:06,809 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-11-30 00:36:06,814 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:36:06,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:36:06,814 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:36:06,814 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:36:06,814 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:36:06,814 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:06,814 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:36:06,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:36:06,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration6_Lasso [2020-11-30 00:36:06,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:36:06,815 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:36:06,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:06,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,351 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-11-30 00:36:07,486 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-11-30 00:36:07,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:07,866 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-11-30 00:36:08,189 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:36:08,189 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:36:08,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,340 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,368 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:36:08,392 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,400 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,431 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,458 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:36:08,594 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:08,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:08,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:08,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,697 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,728 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:08,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:36:08,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:08,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:08,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:08,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:08,909 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:08,909 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:08,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:36:08,991 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-30 00:36:08,991 INFO L444 ModelExtractionUtils]: 39 out of 55 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5fb4caf-9b26-4913-99ee-948e731827c1/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:36:08,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:09,003 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:36:09,003 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:36:09,003 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 [] [2020-11-30 00:36:09,089 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2020-11-30 00:36:09,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:36:09,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:09,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 00:36:09,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:09,194 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:36:09,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:09,216 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 [2020-11-30 00:36:09,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15 Second operand 4 states. [2020-11-30 00:36:09,354 INFO L75 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. [2020-11-30 00:36:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:36:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:36:09,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2020-11-30 00:36:09,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 14 letters. Loop has 2 letters. [2020-11-30 00:36:09,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:09,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2020-11-30 00:36:09,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:09,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 14 letters. Loop has 4 letters. [2020-11-30 00:36:09,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:09,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2020-11-30 00:36:09,359 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:36:09,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2020-11-30 00:36:09,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:36:09,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:36:09,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:36:09,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:09,359 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:36:09,359 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:36:09,359 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:36:09,359 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-30 00:36:09,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:36:09,360 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:36:09,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:36:09,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:36:09 BoogieIcfgContainer [2020-11-30 00:36:09,368 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:36:09,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:36:09,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:36:09,370 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:36:09,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:55" (3/4) ... [2020-11-30 00:36:09,375 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:36:09,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:36:09,376 INFO L168 Benchmark]: Toolchain (without parser) took 15777.26 ms. Allocated memory was 90.2 MB in the beginning and 163.6 MB in the end (delta: 73.4 MB). Free memory was 59.1 MB in the beginning and 129.6 MB in the end (delta: -70.5 MB). Peak memory consumption was 994.1 kB. Max. memory is 16.1 GB. [2020-11-30 00:36:09,377 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:09,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.61 ms. Allocated memory is still 90.2 MB. Free memory was 58.9 MB in the beginning and 56.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:09,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.84 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 54.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:09,384 INFO L168 Benchmark]: Boogie Preprocessor took 57.89 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 52.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:09,385 INFO L168 Benchmark]: RCFGBuilder took 768.48 ms. Allocated memory is still 90.2 MB. Free memory was 52.8 MB in the beginning and 35.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:09,386 INFO L168 Benchmark]: BuchiAutomizer took 14220.02 ms. Allocated memory was 90.2 MB in the beginning and 163.6 MB in the end (delta: 73.4 MB). Free memory was 35.1 MB in the beginning and 130.7 MB in the end (delta: -95.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:09,387 INFO L168 Benchmark]: Witness Printer took 6.25 ms. Allocated memory is still 163.6 MB. Free memory was 130.7 MB in the beginning and 129.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:09,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 627.61 ms. Allocated memory is still 90.2 MB. Free memory was 58.9 MB in the beginning and 56.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.84 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 54.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.89 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 52.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 768.48 ms. Allocated memory is still 90.2 MB. Free memory was 52.8 MB in the beginning and 35.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14220.02 ms. Allocated memory was 90.2 MB in the beginning and 163.6 MB in the end (delta: 73.4 MB). Free memory was 35.1 MB in the beginning and 130.7 MB in the end (delta: -95.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.25 ms. Allocated memory is still 163.6 MB. Free memory was 130.7 MB in the beginning and 129.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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[__builtin_alloca (length2 * sizeof(char))] + -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 14.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 11.0s. Construction of modules took 1.7s. Büchi inclusion checks took 1.1s. 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: 103 SDtfs, 185 SDslu, 177 SDs, 0 SdLazy, 191 SolverSat, 41 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.7s 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: 29ms 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...