./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrspn_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrspn_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9c357a0f089ccce134e4135f49c3923f49db9d7a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:21:35,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:35,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:35,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:35,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:35,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:35,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:35,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:35,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:35,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:35,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:35,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:35,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:35,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:35,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:35,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:35,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:35,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:35,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:35,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:35,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:35,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:35,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:35,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:35,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:35,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:35,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:35,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:35,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:35,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:35,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:35,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:35,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:35,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:35,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:35,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:35,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:35,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:35,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:35,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:35,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:35,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:21:35,919 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:35,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:35,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:35,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:35,922 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:35,922 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:21:35,922 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:21:35,923 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:21:35,923 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:21:35,923 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:21:35,923 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:21:35,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:35,924 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:35,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:35,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:35,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:21:35,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:21:35,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:21:35,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:35,926 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:21:35,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:35,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:21:35,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:35,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:35,928 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:21:35,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:35,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:35,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:35,929 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:21:35,930 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:21:35,931 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_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c357a0f089ccce134e4135f49c3923f49db9d7a [2020-11-28 03:21:36,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:36,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:36,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:36,376 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:36,377 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:36,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrspn_malloc.i [2020-11-28 03:21:36,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/data/a1cf8c296/d67f285124ec4053bd3c238b000673f5/FLAG033347587 [2020-11-28 03:21:37,102 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:37,103 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/sv-benchmarks/c/termination-15/cstrspn_malloc.i [2020-11-28 03:21:37,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/data/a1cf8c296/d67f285124ec4053bd3c238b000673f5/FLAG033347587 [2020-11-28 03:21:37,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/data/a1cf8c296/d67f285124ec4053bd3c238b000673f5 [2020-11-28 03:21:37,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:37,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:37,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:37,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:37,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:37,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92d75bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:37, skipping insertion in model container [2020-11-28 03:21:37,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:37" (1/1) ... [2020-11-28 03:21:37,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:37,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:37,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:37,921 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:37,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:38,054 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:38,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38 WrapperNode [2020-11-28 03:21:38,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:38,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:38,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:38,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:38,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:38,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:38,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:38,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:38,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... [2020-11-28 03:21:38,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:38,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:38,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:38,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:38,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:21:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:21:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:21:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:21:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:38,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:38,631 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:21:38,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:38 BoogieIcfgContainer [2020-11-28 03:21:38,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:38,635 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:21:38,635 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:21:38,639 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:21:38,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:38,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:21:37" (1/3) ... [2020-11-28 03:21:38,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@489d3452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:38, skipping insertion in model container [2020-11-28 03:21:38,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:38,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:38" (2/3) ... [2020-11-28 03:21:38,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@489d3452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:21:38, skipping insertion in model container [2020-11-28 03:21:38,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:21:38,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:38" (3/3) ... [2020-11-28 03:21:38,645 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrspn_malloc.i [2020-11-28 03:21:38,700 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:21:38,700 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:21:38,701 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:21:38,701 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:38,701 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:38,701 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:21:38,701 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:38,702 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:21:38,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:21:38,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-28 03:21:38,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:38,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:38,767 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:21:38,768 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:21:38,768 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:21:38,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:21:38,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-28 03:21:38,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:38,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:38,772 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:21:38,772 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:21:38,781 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 12#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 10#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;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_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 6#L369-4true [2020-11-28 03:21:38,796 INFO L796 eck$LassoCheckResult]: Loop: 6#L369-4true call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 18#L369-1true assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 20#L372-5true assume !true; 4#L372-6true call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 8#L374true assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 5#L369-3true cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 6#L369-4true [2020-11-28 03:21:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:38,820 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-28 03:21:38,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:38,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699674654] [2020-11-28 03:21:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:38,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,032 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:39,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2020-11-28 03:21:39,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146714631] [2020-11-28 03:21:39,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:39,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146714631] [2020-11-28 03:21:39,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:39,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:21:39,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387961839] [2020-11-28 03:21:39,087 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:21:39,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:39,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:21:39,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:21:39,112 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-28 03:21:39,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:39,122 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-28 03:21:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:21:39,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-11-28 03:21:39,130 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-28 03:21:39,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2020-11-28 03:21:39,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-28 03:21:39,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-28 03:21:39,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-11-28 03:21:39,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:21:39,140 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-28 03:21:39,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-11-28 03:21:39,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 03:21:39,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:21:39,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-11-28 03:21:39,175 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-28 03:21:39,175 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-28 03:21:39,176 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:21:39,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-11-28 03:21:39,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-28 03:21:39,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:39,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:39,179 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:21:39,180 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:39,180 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 50#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 51#L382 assume !(main_~length1~0 < 1); 52#L382-2 assume !(main_~length2~0 < 1); 49#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;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_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 47#L369-4 [2020-11-28 03:21:39,181 INFO L796 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 48#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 56#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 53#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 54#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;havoc cstrspn_#t~mem209; 44#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 45#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 46#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 47#L369-4 [2020-11-28 03:21:39,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,184 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-11-28 03:21:39,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173256660] [2020-11-28 03:21:39,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,293 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:39,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2020-11-28 03:21:39,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345484343] [2020-11-28 03:21:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,336 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,367 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:39,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,371 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2020-11-28 03:21:39,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613958491] [2020-11-28 03:21:39,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:39,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:39,489 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:39,842 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-11-28 03:21:40,409 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2020-11-28 03:21:40,606 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-28 03:21:40,623 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:40,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:40,624 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:40,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:40,625 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:21:40,625 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:40,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:40,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:40,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_malloc.i_Iteration2_Lasso [2020-11-28 03:21:40,632 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:40,632 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:40,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:40,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,342 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-11-28 03:21:41,643 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-11-28 03:21:41,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:41,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:42,587 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-11-28 03:21:42,904 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 28 [2020-11-28 03:21:42,926 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:42,935 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:42,947 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 [2020-11-28 03:21:42,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:42,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:42,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:42,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:42,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:42,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:42,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:42,957 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:21:43,012 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 [2020-11-28 03:21:43,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:43,059 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 [2020-11-28 03:21:43,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:43,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:43,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:21:43,126 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 [2020-11-28 03:21:43,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,132 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,179 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 [2020-11-28 03:21:43,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:43,241 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 [2020-11-28 03:21:43,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:43,253 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:43,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,285 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 [2020-11-28 03:21:43,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:43,321 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 [2020-11-28 03:21:43,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,324 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 [2020-11-28 03:21:43,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:43,352 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,385 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 [2020-11-28 03:21:43,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,420 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 [2020-11-28 03:21:43,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,449 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 [2020-11-28 03:21:43,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,482 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 [2020-11-28 03:21:43,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,518 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 [2020-11-28 03:21:43,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,549 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 [2020-11-28 03:21:43,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:43,584 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 [2020-11-28 03:21:43,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:43,615 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 [2020-11-28 03:21:43,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,618 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-28 03:21:43,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,678 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-28 03:21:43,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:43,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:43,757 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 [2020-11-28 03:21:43,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:43,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:43,831 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 [2020-11-28 03:21:43,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:43,872 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 [2020-11-28 03:21:43,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,914 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 [2020-11-28 03:21:43,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:43,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:43,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:43,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:43,949 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 [2020-11-28 03:21:43,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:43,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:43,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:43,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:43,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:43,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:43,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:44,009 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 [2020-11-28 03:21:44,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:44,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:44,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:44,082 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 [2020-11-28 03:21:44,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:44,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:44,095 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:44,132 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 [2020-11-28 03:21:44,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:44,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:44,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:44,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:44,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:44,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:44,169 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:21:44,412 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-28 03:21:44,412 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 19 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:44,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:44,422 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:21:44,422 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:21:44,423 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrspn_~sc1~0.base)_1, ULTIMATE.start_cstrspn_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrspn_~sc1~0.base)_1 - 1*ULTIMATE.start_cstrspn_~sc1~0.offset Supporting invariants [] [2020-11-28 03:21:44,506 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 03:21:44,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:21:44,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:21:44,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:44,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:44,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:44,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:44,660 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 [2020-11-28 03:21:44,661 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:21:44,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2020-11-28 03:21:44,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:21:44,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:21:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-11-28 03:21:44,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-28 03:21:44,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:44,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2020-11-28 03:21:44,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:44,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2020-11-28 03:21:44,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:44,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-11-28 03:21:44,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:44,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2020-11-28 03:21:44,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-28 03:21:44,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 03:21:44,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2020-11-28 03:21:44,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:21:44,753 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-28 03:21:44,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2020-11-28 03:21:44,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-28 03:21:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 03:21:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-11-28 03:21:44,755 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-28 03:21:44,755 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-28 03:21:44,756 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:21:44,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-11-28 03:21:44,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:44,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:44,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:44,757 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:44,757 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:44,758 INFO L794 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 181#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 182#L382 assume !(main_~length1~0 < 1); 183#L382-2 assume !(main_~length2~0 < 1); 180#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;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_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 177#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 179#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 189#L372-5 [2020-11-28 03:21:44,758 INFO L796 eck$LassoCheckResult]: Loop: 189#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 184#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 185#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;havoc cstrspn_#t~mem209;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, 1 + cstrspn_#t~post211.offset;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 189#L372-5 [2020-11-28 03:21:44,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2020-11-28 03:21:44,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:44,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065647404] [2020-11-28 03:21:44,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,795 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,836 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,839 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2020-11-28 03:21:44,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:44,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796063868] [2020-11-28 03:21:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,855 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:44,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:44,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2020-11-28 03:21:44,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:44,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036707757] [2020-11-28 03:21:44,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:44,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:44,988 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:45,101 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-11-28 03:21:45,762 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 100 [2020-11-28 03:21:45,980 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-28 03:21:45,983 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:45,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:45,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:45,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:45,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:21:45,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:45,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:45,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:45,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_malloc.i_Iteration3_Lasso [2020-11-28 03:21:45,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:45,984 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:45,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,525 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-11-28 03:21:46,651 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-28 03:21:46,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:46,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:47,402 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-11-28 03:21:47,985 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-11-28 03:21:48,038 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:48,038 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:48,052 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 [2020-11-28 03:21:48,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:48,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:48,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:48,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:48,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:48,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:48,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:48,086 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 [2020-11-28 03:21:48,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:48,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:48,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:48,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:48,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:48,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:48,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:48,118 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 [2020-11-28 03:21:48,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:48,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:48,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:48,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:48,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:48,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:48,132 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:48,178 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 [2020-11-28 03:21:48,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:48,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:48,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:48,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:48,186 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:48,186 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:48,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:48,224 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 [2020-11-28 03:21:48,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:48,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:48,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:48,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:48,238 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:48,238 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:48,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:21:48,271 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-28 03:21:48,271 INFO L444 ModelExtractionUtils]: 18 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:48,274 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:21:48,276 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:21:48,277 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:21:48,277 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0.offset, v_rep(select #length ULTIMATE.start_cstrspn_~s~0.base)_2) = -1*ULTIMATE.start_cstrspn_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_cstrspn_~s~0.base)_2 Supporting invariants [] [2020-11-28 03:21:48,357 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-11-28 03:21:48,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:21:48,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:48,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:21:48,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:48,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:21:48,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:48,417 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 [2020-11-28 03:21:48,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-11-28 03:21:48,463 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 43 states and 57 transitions. Complement of second has 5 states. [2020-11-28 03:21:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:21:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:21:48,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-11-28 03:21:48,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2020-11-28 03:21:48,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:48,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2020-11-28 03:21:48,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:48,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2020-11-28 03:21:48,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:48,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2020-11-28 03:21:48,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:48,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2020-11-28 03:21:48,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 03:21:48,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 03:21:48,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2020-11-28 03:21:48,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:21:48,473 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-28 03:21:48,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2020-11-28 03:21:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-11-28 03:21:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-28 03:21:48,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2020-11-28 03:21:48,477 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-11-28 03:21:48,477 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-11-28 03:21:48,477 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:21:48,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2020-11-28 03:21:48,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:48,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:48,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:48,479 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:48,479 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:48,480 INFO L794 eck$LassoCheckResult]: Stem: 353#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 346#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 347#L382 assume !(main_~length1~0 < 1); 348#L382-2 assume !(main_~length2~0 < 1); 345#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;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_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 341#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 342#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 355#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 351#L372-1 assume !cstrspn_#t~short210; 352#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;havoc cstrspn_#t~mem209; 337#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 338#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 339#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 340#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 344#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 354#L372-5 [2020-11-28 03:21:48,480 INFO L796 eck$LassoCheckResult]: Loop: 354#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 349#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 350#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;havoc cstrspn_#t~mem209;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, 1 + cstrspn_#t~post211.offset;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 354#L372-5 [2020-11-28 03:21:48,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:48,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2020-11-28 03:21:48,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:48,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495669119] [2020-11-28 03:21:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:48,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495669119] [2020-11-28 03:21:48,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:21:48,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:21:48,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689691188] [2020-11-28 03:21:48,627 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:21:48,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:48,627 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2020-11-28 03:21:48,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:48,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324267893] [2020-11-28 03:21:48,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:48,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:48,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:48,641 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:48,784 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-11-28 03:21:48,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:21:48,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:21:48,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:21:48,837 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-11-28 03:21:48,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:21:48,976 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-11-28 03:21:48,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:21:48,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2020-11-28 03:21:48,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:21:48,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2020-11-28 03:21:48,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 03:21:48,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 03:21:48,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-11-28 03:21:48,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:21:48,986 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-11-28 03:21:48,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-11-28 03:21:48,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-11-28 03:21:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 03:21:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2020-11-28 03:21:48,989 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-11-28 03:21:48,989 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-11-28 03:21:48,989 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:21:48,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2020-11-28 03:21:48,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:21:48,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:21:48,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:21:48,992 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:21:48,992 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:21:48,992 INFO L794 eck$LassoCheckResult]: Stem: 425#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 418#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 419#L382 assume !(main_~length1~0 < 1); 420#L382-2 assume !(main_~length2~0 < 1); 417#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;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_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 413#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 414#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 432#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 431#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 430#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;havoc cstrspn_#t~mem209; 409#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 410#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 411#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 412#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 416#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 426#L372-5 [2020-11-28 03:21:48,992 INFO L796 eck$LassoCheckResult]: Loop: 426#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 421#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 422#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;havoc cstrspn_#t~mem209;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, 1 + cstrspn_#t~post211.offset;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 426#L372-5 [2020-11-28 03:21:48,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:48,993 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2020-11-28 03:21:48,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:48,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589131379] [2020-11-28 03:21:48,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:49,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:49,068 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:49,075 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:49,075 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2020-11-28 03:21:49,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:49,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003520756] [2020-11-28 03:21:49,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:49,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:49,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:49,087 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:49,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:49,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2020-11-28 03:21:49,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:49,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522396339] [2020-11-28 03:21:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:49,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:49,169 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:49,184 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:50,232 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 140 [2020-11-28 03:21:50,467 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-11-28 03:21:50,469 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:21:50,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:21:50,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:21:50,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:21:50,469 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:21:50,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:50,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:21:50,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:21:50,470 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_malloc.i_Iteration5_Lasso [2020-11-28 03:21:50,470 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:21:50,470 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:21:50,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:50,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:51,839 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-11-28 03:21:52,052 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-11-28 03:21:52,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:21:52,293 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-11-28 03:21:52,534 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-11-28 03:21:53,101 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-11-28 03:21:53,347 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-11-28 03:21:53,858 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-11-28 03:21:54,027 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:21:54,027 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:54,038 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:54,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,075 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 [2020-11-28 03:21:54,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,111 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 [2020-11-28 03:21:54,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:54,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:54,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:54,151 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 [2020-11-28 03:21:54,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,183 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 [2020-11-28 03:21:54,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,217 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 [2020-11-28 03:21:54,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,249 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 [2020-11-28 03:21:54,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,284 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 [2020-11-28 03:21:54,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,313 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 [2020-11-28 03:21:54,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:21:54,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:21:54,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:21:54,316 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,342 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 [2020-11-28 03:21:54,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:54,345 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:54,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:54,373 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 [2020-11-28 03:21:54,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:54,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:54,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,407 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 [2020-11-28 03:21:54,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:54,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:54,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:54,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:54,477 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 [2020-11-28 03:21:54,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,479 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-28 03:21:54,480 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-11-28 03:21:54,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:54,622 INFO L401 nArgumentSynthesizer]: We have 132 Motzkin's Theorem applications. [2020-11-28 03:21:54,622 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-11-28 03:21:54,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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 [2020-11-28 03:21:54,896 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 [2020-11-28 03:21:54,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:54,898 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-28 03:21:54,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:54,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:54,927 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-28 03:21:54,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:54,958 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:55,003 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 [2020-11-28 03:21:55,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:55,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:55,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:55,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:55,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:55,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:55,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:55,057 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 [2020-11-28 03:21:55,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:55,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:55,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:55,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:55,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:55,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:55,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:55,112 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 [2020-11-28 03:21:55,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:55,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:55,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:55,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:55,117 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:55,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:55,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:55,165 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 [2020-11-28 03:21:55,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:55,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:55,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:55,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:21:55,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:55,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:55,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:55,216 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 [2020-11-28 03:21:55,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:21:55,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:21:55,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:21:55,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:21:55,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:21:55,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:21:55,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:21:55,296 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-28 03:21:55,296 INFO L444 ModelExtractionUtils]: 26 out of 43 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc774a8f-dffc-4737-a1c2-38f65ac9d357/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) [2020-11-28 03:21:55,303 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 [2020-11-28 03:21:55,306 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:21:55,307 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:21:55,307 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3, ULTIMATE.start_cstrspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3 - 1*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [] [2020-11-28 03:21:55,513 INFO L297 tatePredicateManager]: 30 out of 31 supporting invariants were superfluous and have been removed [2020-11-28 03:21:55,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:21:55,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:55,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:21:55,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:55,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:21:55,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:55,715 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 [2020-11-28 03:21:55,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-28 03:21:55,796 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2020-11-28 03:21:55,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:21:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:21:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-28 03:21:55,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-28 03:21:55,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:55,799 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:21:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:55,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:21:55,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:55,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:21:55,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:55,968 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 03:21:55,968 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-28 03:21:56,034 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2020-11-28 03:21:56,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:21:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:21:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-28 03:21:56,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-28 03:21:56,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:56,043 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:21:56,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:56,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 03:21:56,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:21:56,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:21:56,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:21:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:21:56,183 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 03:21:56,183 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-28 03:21:56,242 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 53 transitions. Complement of second has 5 states. [2020-11-28 03:21:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:21:56,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:21:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-11-28 03:21:56,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-28 03:21:56,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:56,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2020-11-28 03:21:56,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:56,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2020-11-28 03:21:56,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:21:56,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2020-11-28 03:21:56,249 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:21:56,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2020-11-28 03:21:56,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:21:56,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:21:56,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:21:56,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:21:56,250 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:56,250 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:56,250 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:21:56,251 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 03:21:56,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:21:56,251 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:21:56,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:21:56,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:21:56 BoogieIcfgContainer [2020-11-28 03:21:56,264 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:21:56,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:56,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:56,265 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:56,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:38" (3/4) ... [2020-11-28 03:21:56,269 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:21:56,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:56,273 INFO L168 Benchmark]: Toolchain (without parser) took 18859.50 ms. Allocated memory was 83.9 MB in the beginning and 234.9 MB in the end (delta: 151.0 MB). Free memory was 50.0 MB in the beginning and 145.6 MB in the end (delta: -95.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:56,279 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 64.2 MB in the beginning and 64.1 MB in the end (delta: 18.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:56,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.18 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 60.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:56,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 102.8 MB. Free memory was 60.8 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:56,280 INFO L168 Benchmark]: Boogie Preprocessor took 32.22 ms. Allocated memory is still 102.8 MB. Free memory was 58.7 MB in the beginning and 57.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:56,283 INFO L168 Benchmark]: RCFGBuilder took 488.98 ms. Allocated memory is still 102.8 MB. Free memory was 57.5 MB in the beginning and 76.9 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:56,283 INFO L168 Benchmark]: BuchiAutomizer took 17629.64 ms. Allocated memory was 102.8 MB in the beginning and 234.9 MB in the end (delta: 132.1 MB). Free memory was 76.9 MB in the beginning and 145.6 MB in the end (delta: -68.7 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:56,284 INFO L168 Benchmark]: Witness Printer took 7.10 ms. Allocated memory is still 234.9 MB. Free memory is still 145.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:56,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 64.2 MB in the beginning and 64.1 MB in the end (delta: 18.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 640.18 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 60.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 102.8 MB. Free memory was 60.8 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.22 ms. Allocated memory is still 102.8 MB. Free memory was 58.7 MB in the beginning and 57.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 488.98 ms. Allocated memory is still 102.8 MB. Free memory was 57.5 MB in the beginning and 76.9 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 17629.64 ms. Allocated memory was 102.8 MB in the beginning and 234.9 MB in the end (delta: 132.1 MB). Free memory was 76.9 MB in the beginning and 145.6 MB in the end (delta: -68.7 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. * Witness Printer took 7.10 ms. Allocated memory is still 234.9 MB. Free memory is still 145.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[sc1] + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[malloc(length2 * sizeof(char))] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 16.1s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 106 SDtfs, 103 SDslu, 67 SDs, 0 SdLazy, 103 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital274 mio100 ax100 hnf98 lsp106 ukn82 mio100 lsp29 div133 bol100 ite100 ukn100 eq157 hnf83 smp91 dnf721 smp42 tf100 neg96 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 386ms VariablesStem: 7 VariablesLoop: 4 DisjunctsStem: 4 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 132 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...