./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8770e865452d763f6a1ae70a92c5caf41552c1e5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:57:40,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:40,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:40,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:40,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:40,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:40,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:40,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:40,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:40,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:40,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:40,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:40,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:40,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:40,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:40,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:40,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:40,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:40,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:40,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:40,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:40,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:40,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:40,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:40,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:40,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:40,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:40,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:40,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:40,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:40,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:40,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:40,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:40,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:40,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:40,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:40,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:40,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:40,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:40,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:40,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:40,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 02:57:40,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:40,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:40,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:40,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:40,660 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:40,660 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:57:40,661 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:57:40,661 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:57:40,661 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:57:40,661 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:57:40,663 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:57:40,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:40,663 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:40,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:40,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:40,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:40,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:40,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:57:40,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:57:40,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:57:40,665 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:40,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:40,666 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:57:40,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:40,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:57:40,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:40,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:40,667 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:57:40,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:40,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:40,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:40,670 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:57:40,672 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:57:40,672 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_9d1947ce-df8b-41d0-a9a6-bacd13485551/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8770e865452d763f6a1ae70a92c5caf41552c1e5 [2020-11-28 02:57:40,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:41,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:41,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:41,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:41,023 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:41,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/../../sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 02:57:41,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/data/31e7e5529/0c21f7cc273548fc8db8911673ddc097/FLAG6cd937df1 [2020-11-28 02:57:41,569 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:41,569 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/sv-benchmarks/c/loops/verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 02:57:41,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/data/31e7e5529/0c21f7cc273548fc8db8911673ddc097/FLAG6cd937df1 [2020-11-28 02:57:41,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/data/31e7e5529/0c21f7cc273548fc8db8911673ddc097 [2020-11-28 02:57:41,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:41,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:41,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:41,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:41,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:41,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:41,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206ac18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:41, skipping insertion in model container [2020-11-28 02:57:41,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:41" (1/1) ... [2020-11-28 02:57:41,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:41,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:42,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:42,229 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:42,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:42,311 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:42,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42 WrapperNode [2020-11-28 02:57:42,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:42,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:42,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:42,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:42,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:42,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:42,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:42,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:42,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... [2020-11-28 02:57:42,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:42,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:42,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:42,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:42,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:57:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:57:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:57:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-11-28 02:57:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:42,946 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:42,947 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-28 02:57:42,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:42 BoogieIcfgContainer [2020-11-28 02:57:42,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:42,949 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:42,950 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:42,953 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:42,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:42,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:41" (1/3) ... [2020-11-28 02:57:42,955 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@557566ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:42, skipping insertion in model container [2020-11-28 02:57:42,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:42,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:42" (2/3) ... [2020-11-28 02:57:42,956 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@557566ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:42, skipping insertion in model container [2020-11-28 02:57:42,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:42,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:42" (3/3) ... [2020-11-28 02:57:42,958 INFO L373 chiAutomizerObserver]: Analyzing ICFG verisec_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 02:57:43,027 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:43,027 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:43,027 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:43,027 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:43,027 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:43,028 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:43,028 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:43,028 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:43,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states. [2020-11-28 02:57:43,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2020-11-28 02:57:43,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:43,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:43,075 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 02:57:43,075 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:43,075 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:43,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states. [2020-11-28 02:57:43,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2020-11-28 02:57:43,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:43,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:43,084 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 02:57:43,084 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:43,092 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 9#L-1true havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 28#L61true assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 3#L62-4true [2020-11-28 02:57:43,092 INFO L796 eck$LassoCheckResult]: Loop: 3#L62-4true parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 12#L65true assume !parse_expression_list_#t~switch7; 33#L64true havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 8#L62-1true call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 5#L62-2true assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 3#L62-4true [2020-11-28 02:57:43,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:43,099 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-28 02:57:43,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:43,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890713471] [2020-11-28 02:57:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:43,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:43,248 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:43,279 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:43,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:43,281 INFO L82 PathProgramCache]: Analyzing trace with hash 42114609, now seen corresponding path program 1 times [2020-11-28 02:57:43,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:43,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658539359] [2020-11-28 02:57:43,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:43,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:43,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:43,302 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:43,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:43,304 INFO L82 PathProgramCache]: Analyzing trace with hash 181442414, now seen corresponding path program 1 times [2020-11-28 02:57:43,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:43,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659135828] [2020-11-28 02:57:43,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:43,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:43,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:43,440 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:43,977 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-11-28 02:57:44,132 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-28 02:57:44,149 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:44,150 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:44,150 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:44,150 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:44,151 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:44,151 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:44,151 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:44,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:44,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_OpenSER_cases1_stripFullBoth_arr.i_Iteration1_Lasso [2020-11-28 02:57:44,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:44,152 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:44,183 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 02:57:44,189 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 02:57:44,192 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 02:57:44,197 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 02:57:44,202 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 02:57:44,206 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 02:57:44,210 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 02:57:44,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:44,217 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 02:57:44,554 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-28 02:57:44,592 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 02:57:44,597 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 02:57:44,601 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 02:57:44,604 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 02:57:44,608 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 02:57:44,612 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 02:57:44,615 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 02:57:44,618 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 02:57:44,621 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 02:57:44,625 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 02:57:44,628 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 02:57:44,631 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 02:57:44,634 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 02:57:44,640 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 02:57:44,643 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 02:57:44,647 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 02:57:44,650 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 02:57:44,655 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 02:57:44,658 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 02:57:44,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:44,666 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 02:57:45,316 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:45,322 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,335 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 02:57:45,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:45,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:45,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:45,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:45,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:45,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:45,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:45,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:45,429 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 02:57:45,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:45,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:45,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,480 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 02:57:45,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:45,528 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 02:57:45,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:45,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:45,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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) [2020-11-28 02:57:45,576 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 02:57:45,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:45,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:45,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:45,623 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 02:57:45,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:45,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:45,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,666 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 02:57:45,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:45,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,696 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 02:57:45,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:45,712 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,738 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 02:57:45,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:45,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,769 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 02:57:45,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:45,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:45,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:45,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:45,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:45,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,839 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 02:57:45,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:45,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:45,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:45,881 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:45,904 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 02:57:45,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:45,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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) [2020-11-28 02:57:45,965 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 02:57:45,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:45,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:45,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:45,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:45,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:45,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:45,973 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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) [2020-11-28 02:57:46,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:46,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:46,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:46,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:46,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:46,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:46,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:46,036 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:46,131 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-28 02:57:46,131 INFO L444 ModelExtractionUtils]: 11 out of 22 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:46,140 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:57:46,142 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:46,143 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:46,143 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1, ULTIMATE.start_parse_expression_list_~str.offset, ULTIMATE.start_parse_expression_list_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 - 1*ULTIMATE.start_parse_expression_list_~str.offset - 1*ULTIMATE.start_parse_expression_list_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:46,325 INFO L297 tatePredicateManager]: 17 out of 18 supporting invariants were superfluous and have been removed [2020-11-28 02:57:46,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:46,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:46,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:46,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:46,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:46,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:46,522 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 02:57:46,540 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 02:57:46,541 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states. Second operand 4 states. [2020-11-28 02:57:46,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states.. Second operand 4 states. Result 100 states and 141 transitions. Complement of second has 7 states. [2020-11-28 02:57:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:46,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:46,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2020-11-28 02:57:46,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 3 letters. Loop has 5 letters. [2020-11-28 02:57:46,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:46,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 8 letters. Loop has 5 letters. [2020-11-28 02:57:46,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:46,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 3 letters. Loop has 10 letters. [2020-11-28 02:57:46,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:46,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 141 transitions. [2020-11-28 02:57:46,722 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:46,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 40 states and 55 transitions. [2020-11-28 02:57:46,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-28 02:57:46,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-28 02:57:46,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 55 transitions. [2020-11-28 02:57:46,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:46,733 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 55 transitions. [2020-11-28 02:57:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 55 transitions. [2020-11-28 02:57:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2020-11-28 02:57:46,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 02:57:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-28 02:57:46,766 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-28 02:57:46,766 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-28 02:57:46,766 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:57:46,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 54 transitions. [2020-11-28 02:57:46,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:46,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:46,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:46,771 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:46,771 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:46,771 INFO L794 eck$LassoCheckResult]: Stem: 300#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 278#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 279#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 263#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 264#L65 assume parse_expression_list_#t~switch7; 273#L66-5 [2020-11-28 02:57:46,772 INFO L796 eck$LassoCheckResult]: Loop: 273#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 274#L66-1 assume parse_expression_list_#t~short10; 298#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 273#L66-5 [2020-11-28 02:57:46,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:46,774 INFO L82 PathProgramCache]: Analyzing trace with hash 28695815, now seen corresponding path program 1 times [2020-11-28 02:57:46,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:46,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651490492] [2020-11-28 02:57:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:46,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:46,846 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:46,867 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:46,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:46,867 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 1 times [2020-11-28 02:57:46,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:46,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113119811] [2020-11-28 02:57:46,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:46,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:46,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:46,885 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:46,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:46,886 INFO L82 PathProgramCache]: Analyzing trace with hash 178551732, now seen corresponding path program 1 times [2020-11-28 02:57:46,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:46,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039391354] [2020-11-28 02:57:46,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:47,140 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 02:57:47,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039391354] [2020-11-28 02:57:47,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:47,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:57:47,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190340320] [2020-11-28 02:57:47,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:47,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:57:47,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:47,233 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. cyclomatic complexity: 18 Second operand 6 states. [2020-11-28 02:57:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:47,430 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2020-11-28 02:57:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:47,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 97 transitions. [2020-11-28 02:57:47,433 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-28 02:57:47,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 71 states and 97 transitions. [2020-11-28 02:57:47,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-11-28 02:57:47,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-11-28 02:57:47,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 97 transitions. [2020-11-28 02:57:47,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:47,436 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 97 transitions. [2020-11-28 02:57:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 97 transitions. [2020-11-28 02:57:47,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2020-11-28 02:57:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-28 02:57:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2020-11-28 02:57:47,448 INFO L714 BuchiCegarLoop]: Abstraction has 46 states and 63 transitions. [2020-11-28 02:57:47,449 INFO L594 BuchiCegarLoop]: Abstraction has 46 states and 63 transitions. [2020-11-28 02:57:47,449 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:57:47,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 63 transitions. [2020-11-28 02:57:47,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:47,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:47,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:47,453 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:47,453 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:47,453 INFO L794 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 402#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 403#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 386#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 387#L65 assume !parse_expression_list_#t~switch7; 396#L64 havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 401#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 390#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 388#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 389#L65 assume parse_expression_list_#t~switch7; 429#L66-5 [2020-11-28 02:57:47,453 INFO L796 eck$LassoCheckResult]: Loop: 429#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 430#L66-1 assume parse_expression_list_#t~short10; 431#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 429#L66-5 [2020-11-28 02:57:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:47,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1727498927, now seen corresponding path program 1 times [2020-11-28 02:57:47,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:47,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538825989] [2020-11-28 02:57:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:47,482 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:47,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:47,502 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:47,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:47,504 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 2 times [2020-11-28 02:57:47,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:47,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728017639] [2020-11-28 02:57:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:47,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:47,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:47,521 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:47,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:47,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1622374614, now seen corresponding path program 1 times [2020-11-28 02:57:47,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:47,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868165716] [2020-11-28 02:57:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:47,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:47,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:47,598 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:48,330 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2020-11-28 02:57:48,513 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-28 02:57:48,515 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:48,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:48,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:48,516 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:48,516 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:48,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:48,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:48,516 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:48,516 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_OpenSER_cases1_stripFullBoth_arr.i_Iteration3_Lasso [2020-11-28 02:57:48,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:48,516 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:48,521 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 02:57:48,545 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 02:57:48,548 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 02:57:48,957 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-28 02:57:49,015 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 02:57:49,020 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 02:57:49,022 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 02:57:49,025 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 02:57:49,027 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 02:57:49,029 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 02:57:49,047 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 02:57:49,052 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 02:57:49,054 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 02:57:49,057 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 02:57:49,060 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 02:57:49,064 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 02:57:49,066 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 02:57:49,068 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 02:57:49,071 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 02:57:49,075 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 02:57:49,077 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 02:57:49,079 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 02:57:49,087 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 02:57:49,090 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 02:57:49,093 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 02:57:49,095 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 02:57:49,098 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 02:57:49,100 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 02:57:49,102 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 02:57:49,534 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:49,534 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:49,565 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 02:57:49,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:49,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:49,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:49,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:49,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:49,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:49,570 INFO L402 nArgumentSynthesizer]: A total of 0 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 02:57:49,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:49,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:49,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:49,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:49,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:49,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:49,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:49,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:49,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:49,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:49,648 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 02:57:49,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:49,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:49,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:49,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:49,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:49,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:49,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:49,701 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 02:57:49,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:49,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:49,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:49,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:49,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:49,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:49,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:49,747 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 02:57:49,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:49,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:49,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:49,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:49,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:49,752 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 02:57:49,757 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:49,801 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 02:57:49,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:49,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:49,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:49,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:49,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:49,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:49,824 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:49,865 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-11-28 02:57:49,865 INFO L444 ModelExtractionUtils]: 1 out of 25 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:49,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:57:49,872 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:49,872 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:49,872 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_parse_expression_list_~str.offset, v_rep(select #length ULTIMATE.start_main_~#A~0.base)_2, ULTIMATE.start_parse_expression_list_~start~0) = -1*ULTIMATE.start_parse_expression_list_~str.offset + 1*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_2 - 1*ULTIMATE.start_parse_expression_list_~start~0 Supporting invariants [] [2020-11-28 02:57:50,003 INFO L297 tatePredicateManager]: 24 out of 25 supporting invariants were superfluous and have been removed [2020-11-28 02:57:50,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:50,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:50,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:50,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:50,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:50,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:50,100 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 02:57:50,100 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 02:57:50,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 63 transitions. cyclomatic complexity: 20 Second operand 4 states. [2020-11-28 02:57:50,218 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 63 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 153 states and 213 transitions. Complement of second has 8 states. [2020-11-28 02:57:50,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-11-28 02:57:50,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 10 letters. Loop has 3 letters. [2020-11-28 02:57:50,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:50,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 13 letters. Loop has 3 letters. [2020-11-28 02:57:50,221 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:50,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 10 letters. Loop has 6 letters. [2020-11-28 02:57:50,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:50,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 213 transitions. [2020-11-28 02:57:50,225 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 18 [2020-11-28 02:57:50,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 115 states and 159 transitions. [2020-11-28 02:57:50,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2020-11-28 02:57:50,229 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2020-11-28 02:57:50,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 159 transitions. [2020-11-28 02:57:50,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:50,229 INFO L691 BuchiCegarLoop]: Abstraction has 115 states and 159 transitions. [2020-11-28 02:57:50,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 159 transitions. [2020-11-28 02:57:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-11-28 02:57:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 02:57:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 102 transitions. [2020-11-28 02:57:50,254 INFO L714 BuchiCegarLoop]: Abstraction has 72 states and 102 transitions. [2020-11-28 02:57:50,255 INFO L594 BuchiCegarLoop]: Abstraction has 72 states and 102 transitions. [2020-11-28 02:57:50,255 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 02:57:50,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 102 transitions. [2020-11-28 02:57:50,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:50,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:50,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:50,260 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:50,260 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:50,261 INFO L794 eck$LassoCheckResult]: Stem: 803#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 775#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 776#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 755#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 756#L65 assume parse_expression_list_#t~switch7; 767#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 768#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 826#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10; 761#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 762#L67 assume 34 == parse_expression_list_#t~mem12;havoc parse_expression_list_#t~mem12;parse_expression_list_#t~post13 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post13;havoc parse_expression_list_#t~post13; 784#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 778#L69-8 [2020-11-28 02:57:50,261 INFO L796 eck$LassoCheckResult]: Loop: 778#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 794#L69-1 assume !parse_expression_list_#t~short17; 777#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 778#L69-8 [2020-11-28 02:57:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,276 INFO L82 PathProgramCache]: Analyzing trace with hash 2066956886, now seen corresponding path program 1 times [2020-11-28 02:57:50,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:50,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494123434] [2020-11-28 02:57:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:50,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494123434] [2020-11-28 02:57:50,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:50,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:57:50,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175716929] [2020-11-28 02:57:50,433 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,433 INFO L82 PathProgramCache]: Analyzing trace with hash 75859, now seen corresponding path program 1 times [2020-11-28 02:57:50,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:50,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685456305] [2020-11-28 02:57:50,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:50,440 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 02:57:50,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685456305] [2020-11-28 02:57:50,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:50,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:50,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153545988] [2020-11-28 02:57:50,441 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:50,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:50,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:50,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:50,441 INFO L87 Difference]: Start difference. First operand 72 states and 102 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-11-28 02:57:50,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:50,453 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2020-11-28 02:57:50,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:50,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 103 transitions. [2020-11-28 02:57:50,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:50,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 73 states and 102 transitions. [2020-11-28 02:57:50,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-11-28 02:57:50,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-11-28 02:57:50,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 102 transitions. [2020-11-28 02:57:50,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:50,456 INFO L691 BuchiCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-11-28 02:57:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 102 transitions. [2020-11-28 02:57:50,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-28 02:57:50,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-28 02:57:50,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-11-28 02:57:50,461 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-11-28 02:57:50,461 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-11-28 02:57:50,461 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 02:57:50,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 102 transitions. [2020-11-28 02:57:50,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:50,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:50,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:50,464 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:50,465 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:50,465 INFO L794 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 929#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 930#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 911#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 912#L65 assume parse_expression_list_#t~switch7; 923#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 924#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 964#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10; 961#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 958#L67 assume 34 == parse_expression_list_#t~mem12;havoc parse_expression_list_#t~mem12;parse_expression_list_#t~post13 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post13;havoc parse_expression_list_#t~post13; 937#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 932#L69-8 [2020-11-28 02:57:50,465 INFO L796 eck$LassoCheckResult]: Loop: 932#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 947#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 944#L69-2 assume parse_expression_list_#t~short16; 940#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 931#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 932#L69-8 [2020-11-28 02:57:50,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2066956886, now seen corresponding path program 2 times [2020-11-28 02:57:50,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:50,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326850477] [2020-11-28 02:57:50,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:50,599 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 02:57:50,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326850477] [2020-11-28 02:57:50,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:50,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:57:50,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029808723] [2020-11-28 02:57:50,600 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:50,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,600 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 1 times [2020-11-28 02:57:50,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:50,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457995492] [2020-11-28 02:57:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:50,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:50,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:50,609 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:50,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:50,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:57:50,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:50,726 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. cyclomatic complexity: 35 Second operand 6 states. [2020-11-28 02:57:50,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:50,846 INFO L93 Difference]: Finished difference Result 105 states and 138 transitions. [2020-11-28 02:57:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:50,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 138 transitions. [2020-11-28 02:57:50,848 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-28 02:57:50,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 97 states and 130 transitions. [2020-11-28 02:57:50,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-11-28 02:57:50,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-11-28 02:57:50,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 130 transitions. [2020-11-28 02:57:50,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:50,858 INFO L691 BuchiCegarLoop]: Abstraction has 97 states and 130 transitions. [2020-11-28 02:57:50,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 130 transitions. [2020-11-28 02:57:50,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 69. [2020-11-28 02:57:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-28 02:57:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2020-11-28 02:57:50,863 INFO L714 BuchiCegarLoop]: Abstraction has 69 states and 96 transitions. [2020-11-28 02:57:50,863 INFO L594 BuchiCegarLoop]: Abstraction has 69 states and 96 transitions. [2020-11-28 02:57:50,863 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 02:57:50,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 96 transitions. [2020-11-28 02:57:50,864 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:50,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:50,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:50,865 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:50,865 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:50,865 INFO L794 eck$LassoCheckResult]: Stem: 1142#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 1121#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 1122#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1100#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1101#L65 assume parse_expression_list_#t~switch7; 1112#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 1113#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 1139#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10; 1104#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 1105#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 1123#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 1118#L69-8 [2020-11-28 02:57:50,866 INFO L796 eck$LassoCheckResult]: Loop: 1118#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 1134#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 1131#L69-2 assume parse_expression_list_#t~short16; 1126#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 1117#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 1118#L69-8 [2020-11-28 02:57:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,866 INFO L82 PathProgramCache]: Analyzing trace with hash 2066956948, now seen corresponding path program 1 times [2020-11-28 02:57:50,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:50,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095361183] [2020-11-28 02:57:50,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:50,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:50,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:50,892 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,893 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 2 times [2020-11-28 02:57:50,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:50,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300163605] [2020-11-28 02:57:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:50,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:50,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:50,901 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:50,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:50,902 INFO L82 PathProgramCache]: Analyzing trace with hash 733119365, now seen corresponding path program 1 times [2020-11-28 02:57:50,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:50,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451754686] [2020-11-28 02:57:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:50,948 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 02:57:50,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451754686] [2020-11-28 02:57:50,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:50,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 02:57:50,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635094755] [2020-11-28 02:57:51,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:51,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:57:51,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:51,039 INFO L87 Difference]: Start difference. First operand 69 states and 96 transitions. cyclomatic complexity: 33 Second operand 6 states. [2020-11-28 02:57:51,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:51,160 INFO L93 Difference]: Finished difference Result 115 states and 151 transitions. [2020-11-28 02:57:51,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:57:51,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 151 transitions. [2020-11-28 02:57:51,162 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2020-11-28 02:57:51,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 107 states and 143 transitions. [2020-11-28 02:57:51,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2020-11-28 02:57:51,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2020-11-28 02:57:51,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 143 transitions. [2020-11-28 02:57:51,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:51,164 INFO L691 BuchiCegarLoop]: Abstraction has 107 states and 143 transitions. [2020-11-28 02:57:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 143 transitions. [2020-11-28 02:57:51,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 73. [2020-11-28 02:57:51,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-28 02:57:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 99 transitions. [2020-11-28 02:57:51,174 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 99 transitions. [2020-11-28 02:57:51,174 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 99 transitions. [2020-11-28 02:57:51,174 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-28 02:57:51,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 99 transitions. [2020-11-28 02:57:51,175 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:51,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:51,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:51,176 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:51,176 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:51,176 INFO L794 eck$LassoCheckResult]: Stem: 1343#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 1317#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 1318#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1301#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1302#L65 assume !parse_expression_list_#t~switch7; 1361#L64 havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 1371#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1370#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 1368#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1360#L65 assume parse_expression_list_#t~switch7; 1362#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 1344#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 1340#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10; 1341#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 1331#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 1324#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 1320#L69-8 [2020-11-28 02:57:51,176 INFO L796 eck$LassoCheckResult]: Loop: 1320#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 1335#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 1332#L69-2 assume parse_expression_list_#t~short16; 1327#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 1319#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 1320#L69-8 [2020-11-28 02:57:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:51,177 INFO L82 PathProgramCache]: Analyzing trace with hash -893322402, now seen corresponding path program 1 times [2020-11-28 02:57:51,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:51,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858041038] [2020-11-28 02:57:51,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,234 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:51,235 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 3 times [2020-11-28 02:57:51,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:51,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649177136] [2020-11-28 02:57:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,243 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:51,243 INFO L82 PathProgramCache]: Analyzing trace with hash -525682437, now seen corresponding path program 1 times [2020-11-28 02:57:51,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:51,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565384238] [2020-11-28 02:57:51,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:51,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565384238] [2020-11-28 02:57:51,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623547249] [2020-11-28 02:57:51,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:51,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:57:51,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:51,424 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:57:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:51,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:57:51,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-11-28 02:57:51,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562266008] [2020-11-28 02:57:51,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:51,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 02:57:51,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:57:51,497 INFO L87 Difference]: Start difference. First operand 73 states and 99 transitions. cyclomatic complexity: 32 Second operand 7 states. [2020-11-28 02:57:51,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:51,648 INFO L93 Difference]: Finished difference Result 161 states and 217 transitions. [2020-11-28 02:57:51,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:57:51,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 217 transitions. [2020-11-28 02:57:51,653 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-11-28 02:57:51,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 146 states and 195 transitions. [2020-11-28 02:57:51,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2020-11-28 02:57:51,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2020-11-28 02:57:51,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 195 transitions. [2020-11-28 02:57:51,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:51,656 INFO L691 BuchiCegarLoop]: Abstraction has 146 states and 195 transitions. [2020-11-28 02:57:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 195 transitions. [2020-11-28 02:57:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2020-11-28 02:57:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-28 02:57:51,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2020-11-28 02:57:51,662 INFO L714 BuchiCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-11-28 02:57:51,662 INFO L594 BuchiCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-11-28 02:57:51,662 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-28 02:57:51,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 112 states and 151 transitions. [2020-11-28 02:57:51,663 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2020-11-28 02:57:51,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:51,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:51,664 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:51,664 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:51,664 INFO L794 eck$LassoCheckResult]: Stem: 1665#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 1639#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 1640#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1617#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1618#L65 assume !parse_expression_list_#t~switch7; 1647#L64 havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 1721#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1720#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 1619#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1620#L65 assume !parse_expression_list_#t~switch7; 1705#L64 havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 1710#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1709#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 1707#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 1704#L65 assume parse_expression_list_#t~switch7; 1706#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 1633#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 1727#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10; 1726#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 1652#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 1641#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 1636#L69-8 [2020-11-28 02:57:51,665 INFO L796 eck$LassoCheckResult]: Loop: 1636#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 1656#L69-1 assume parse_expression_list_#t~short17;call parse_expression_list_#t~mem14 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short16 := 32 == parse_expression_list_#t~mem14; 1650#L69-2 assume parse_expression_list_#t~short16; 1644#L69-4 parse_expression_list_#t~short17 := parse_expression_list_#t~short16; 1635#L69-6 assume !!parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15;parse_expression_list_#t~post18 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post18 - 1;havoc parse_expression_list_#t~post18; 1636#L69-8 [2020-11-28 02:57:51,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:51,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2142843092, now seen corresponding path program 2 times [2020-11-28 02:57:51,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:51,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204339125] [2020-11-28 02:57:51,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,719 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:51,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:51,720 INFO L82 PathProgramCache]: Analyzing trace with hash 72622648, now seen corresponding path program 4 times [2020-11-28 02:57:51,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:51,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668110072] [2020-11-28 02:57:51,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:51,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:51,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1058570939, now seen corresponding path program 2 times [2020-11-28 02:57:51,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:51,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901114915] [2020-11-28 02:57:51,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:51,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:51,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:52,681 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 144 [2020-11-28 02:57:52,865 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-11-28 02:57:52,866 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:52,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:52,867 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:52,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:52,867 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:52,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:52,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:52,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:52,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: verisec_OpenSER_cases1_stripFullBoth_arr.i_Iteration8_Lasso [2020-11-28 02:57:52,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:52,867 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:52,871 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 02:57:52,882 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 02:57:52,886 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 02:57:52,888 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 02:57:52,917 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 02:57:52,920 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 02:57:52,941 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 02:57:52,948 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 02:57:52,951 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 02:57:52,954 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 02:57:52,961 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 02:57:52,964 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 02:57:52,967 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 02:57:52,970 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 02:57:52,974 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 02:57:53,494 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2020-11-28 02:57:53,558 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 02:57:53,561 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 02:57:53,563 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 02:57:53,565 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 02:57:53,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:53,576 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 02:57:53,579 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 02:57:53,582 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 02:57:53,584 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 02:57:53,586 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 02:57:53,588 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 02:57:53,592 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 02:57:54,040 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-28 02:57:54,183 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:54,183 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,187 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 02:57:54,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,239 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 02:57:54,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:54,264 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 02:57:54,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,289 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 02:57:54,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,294 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,316 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 02:57:54,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,319 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,322 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:54,344 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 02:57:54,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,372 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 02:57:54,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,412 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 02:57:54,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,449 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 02:57:54,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,452 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,477 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 02:57:54,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,508 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 02:57:54,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:54,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,573 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 02:57:54,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,601 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 02:57:54,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:54,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:54,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:54,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,627 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 02:57:54,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:54,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,658 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 02:57:54,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,660 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 02:57:54,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,691 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 02:57:54,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:54,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:54,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,720 INFO L203 nArgumentSynthesizer]: 5 stem disjuncts [2020-11-28 02:57:54,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,725 INFO L401 nArgumentSynthesizer]: We have 14 Motzkin's Theorem applications. [2020-11-28 02:57:54,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,761 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 02:57:54,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,769 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:54,791 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 02:57:54,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:54,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:54,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:54,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:54,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:54,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:54,828 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:54,855 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-28 02:57:54,855 INFO L444 ModelExtractionUtils]: 7 out of 31 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/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 02:57:54,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:54,903 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:54,904 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:54,904 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_parse_expression_list_~j~0) = 1*ULTIMATE.start_parse_expression_list_~j~0 Supporting invariants [] [2020-11-28 02:57:55,044 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2020-11-28 02:57:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:55,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 02:57:55,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:55,126 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 02:57:55,126 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 02:57:55,126 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 112 states and 151 transitions. cyclomatic complexity: 48 Second operand 4 states. [2020-11-28 02:57:55,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 112 states and 151 transitions. cyclomatic complexity: 48. Second operand 4 states. Result 267 states and 360 transitions. Complement of second has 11 states. [2020-11-28 02:57:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:55,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2020-11-28 02:57:55,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 21 letters. Loop has 5 letters. [2020-11-28 02:57:55,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:55,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 26 letters. Loop has 5 letters. [2020-11-28 02:57:55,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:55,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 76 transitions. Stem has 21 letters. Loop has 10 letters. [2020-11-28 02:57:55,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:55,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 360 transitions. [2020-11-28 02:57:55,257 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 17 [2020-11-28 02:57:55,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 170 states and 228 transitions. [2020-11-28 02:57:55,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2020-11-28 02:57:55,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2020-11-28 02:57:55,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 170 states and 228 transitions. [2020-11-28 02:57:55,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:55,259 INFO L691 BuchiCegarLoop]: Abstraction has 170 states and 228 transitions. [2020-11-28 02:57:55,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states and 228 transitions. [2020-11-28 02:57:55,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 118. [2020-11-28 02:57:55,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-11-28 02:57:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 158 transitions. [2020-11-28 02:57:55,266 INFO L714 BuchiCegarLoop]: Abstraction has 118 states and 158 transitions. [2020-11-28 02:57:55,266 INFO L594 BuchiCegarLoop]: Abstraction has 118 states and 158 transitions. [2020-11-28 02:57:55,266 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-28 02:57:55,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 158 transitions. [2020-11-28 02:57:55,269 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2020-11-28 02:57:55,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:55,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:55,270 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:55,270 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:55,271 INFO L794 eck$LassoCheckResult]: Stem: 2291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 2270#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 2271#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 2250#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2251#L65 assume parse_expression_list_#t~switch7; 2320#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2319#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 2318#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10; 2317#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2316#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 2315#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 2314#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 2313#L69-1 assume !parse_expression_list_#t~short17; 2312#L69-6 assume !parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15; 2311#L69-9 parse_expression_list_#t~short20 := 0 < parse_expression_list_~j~0; 2310#L70 assume !parse_expression_list_#t~short20; 2309#L70-2 assume !parse_expression_list_#t~short20;havoc parse_expression_list_#t~mem19;havoc parse_expression_list_#t~short20; 2308#L70-4 assume parse_expression_list_~start~0 <= parse_expression_list_~j~0;r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset, r_strncpy_#in~src.base, r_strncpy_#in~src.offset, r_strncpy_#in~n := parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset, parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0);havoc r_strncpy_#res.base, r_strncpy_#res.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset, r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n;r_strncpy_~dest.base, r_strncpy_~dest.offset := r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset;r_strncpy_~src.base, r_strncpy_~src.offset := r_strncpy_#in~src.base, r_strncpy_#in~src.offset;r_strncpy_~n := r_strncpy_#in~n;call r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset := strncpy(r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n);r_strncpy_#res.base, r_strncpy_#res.offset := r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset; 2307#L41 parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset := r_strncpy_#res.base, r_strncpy_#res.offset;havoc parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset;__VERIFIER_assert_#in~cond := (if 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) < 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2306#L14 assume !(0 == __VERIFIER_assert_~cond); 2305#L14-2 call write~int(0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset + (1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0)), 1); 2304#L71 parse_expression_list_~start~0 := 1 + parse_expression_list_~i~0; 2303#L64 havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 2302#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2301#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 2300#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2298#L65 assume parse_expression_list_#t~switch7; 2289#L66-5 [2020-11-28 02:57:55,271 INFO L796 eck$LassoCheckResult]: Loop: 2289#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2297#L66-1 assume parse_expression_list_#t~short10; 2288#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 2289#L66-5 [2020-11-28 02:57:55,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1563666499, now seen corresponding path program 1 times [2020-11-28 02:57:55,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982056996] [2020-11-28 02:57:55,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,376 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 02:57:55,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982056996] [2020-11-28 02:57:55,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:55,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:57:55,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957465769] [2020-11-28 02:57:55,377 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,378 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 3 times [2020-11-28 02:57:55,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051944926] [2020-11-28 02:57:55,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:55,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:55,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:55,384 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:55,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:55,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:55,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:55,434 INFO L87 Difference]: Start difference. First operand 118 states and 158 transitions. cyclomatic complexity: 49 Second operand 5 states. [2020-11-28 02:57:55,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:55,541 INFO L93 Difference]: Finished difference Result 121 states and 162 transitions. [2020-11-28 02:57:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:55,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 162 transitions. [2020-11-28 02:57:55,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:55,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 108 states and 147 transitions. [2020-11-28 02:57:55,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-28 02:57:55,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-28 02:57:55,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 147 transitions. [2020-11-28 02:57:55,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:55,545 INFO L691 BuchiCegarLoop]: Abstraction has 108 states and 147 transitions. [2020-11-28 02:57:55,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 147 transitions. [2020-11-28 02:57:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 88. [2020-11-28 02:57:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-28 02:57:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2020-11-28 02:57:55,548 INFO L714 BuchiCegarLoop]: Abstraction has 88 states and 119 transitions. [2020-11-28 02:57:55,548 INFO L594 BuchiCegarLoop]: Abstraction has 88 states and 119 transitions. [2020-11-28 02:57:55,548 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-28 02:57:55,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 119 transitions. [2020-11-28 02:57:55,549 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-28 02:57:55,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:55,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:55,550 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:55,550 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:55,550 INFO L794 eck$LassoCheckResult]: Stem: 2546#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(43); 2517#L-1 havoc main_#res;havoc main_#t~ret23, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(9);call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post5, parse_expression_list_#t~mem6, parse_expression_list_#t~switch7, parse_expression_list_#t~post11, parse_expression_list_#t~mem8, parse_expression_list_#t~mem9, parse_expression_list_#t~short10, parse_expression_list_#t~mem12, parse_expression_list_#t~post13, parse_expression_list_#t~post18, parse_expression_list_#t~mem14, parse_expression_list_#t~mem15, parse_expression_list_#t~short16, parse_expression_list_#t~short17, parse_expression_list_#t~mem19, parse_expression_list_#t~short20, parse_expression_list_#t~post21, parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset, parse_expression_list_#t~mem4, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.allocOnStack(2); 2518#L61 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 2501#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2502#L65 assume !parse_expression_list_#t~switch7; 2523#L64 havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 2586#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2585#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 2584#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2583#L65 assume parse_expression_list_#t~switch7; 2580#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2579#L66-1 assume !parse_expression_list_#t~short10;call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 9 == parse_expression_list_#t~mem9; 2577#L66-3 assume !parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10; 2574#L66-6 call parse_expression_list_#t~mem12 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2572#L67 assume !(34 == parse_expression_list_#t~mem12);havoc parse_expression_list_#t~mem12; 2571#L67-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 2541#L69-8 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 2537#L69-1 assume !parse_expression_list_#t~short17; 2538#L69-6 assume !parse_expression_list_#t~short17;havoc parse_expression_list_#t~short16;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem14;havoc parse_expression_list_#t~mem15; 2555#L69-9 parse_expression_list_#t~short20 := 0 < parse_expression_list_~j~0; 2553#L70 assume !parse_expression_list_#t~short20; 2551#L70-2 assume !parse_expression_list_#t~short20;havoc parse_expression_list_#t~mem19;havoc parse_expression_list_#t~short20; 2549#L70-4 assume parse_expression_list_~start~0 <= parse_expression_list_~j~0;r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset, r_strncpy_#in~src.base, r_strncpy_#in~src.offset, r_strncpy_#in~n := parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset, parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0);havoc r_strncpy_#res.base, r_strncpy_#res.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset, r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n;r_strncpy_~dest.base, r_strncpy_~dest.offset := r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset;r_strncpy_~src.base, r_strncpy_~src.offset := r_strncpy_#in~src.base, r_strncpy_#in~src.offset;r_strncpy_~n := r_strncpy_#in~n;call r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset := strncpy(r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n);r_strncpy_#res.base, r_strncpy_#res.offset := r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset;havoc r_strncpy_#t~ret3.base, r_strncpy_#t~ret3.offset; 2542#L41 parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset := r_strncpy_#res.base, r_strncpy_#res.offset;havoc parse_expression_list_#t~ret22.base, parse_expression_list_#t~ret22.offset;__VERIFIER_assert_#in~cond := (if 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) < 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2535#L14 assume !(0 == __VERIFIER_assert_~cond); 2530#L14-2 call write~int(0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset + (1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0)), 1); 2510#L71 parse_expression_list_~start~0 := 1 + parse_expression_list_~i~0; 2511#L64 havoc parse_expression_list_#t~mem6;havoc parse_expression_list_#t~switch7; 2557#L62-1 call parse_expression_list_#t~mem4 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2556#L62-2 assume !!(0 != parse_expression_list_#t~mem4);havoc parse_expression_list_#t~mem4; 2554#L62-4 parse_expression_list_#t~post5 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post5;havoc parse_expression_list_#t~post5;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch7 := 0 == parse_expression_list_#t~mem6; 2552#L65 assume parse_expression_list_#t~switch7; 2513#L66-5 [2020-11-28 02:57:55,550 INFO L796 eck$LassoCheckResult]: Loop: 2513#L66-5 call parse_expression_list_#t~mem8 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short10 := 32 == parse_expression_list_#t~mem8; 2514#L66-1 assume parse_expression_list_#t~short10; 2543#L66-3 assume !!parse_expression_list_#t~short10;havoc parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem8;havoc parse_expression_list_#t~short10;parse_expression_list_#t~post11 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post11;havoc parse_expression_list_#t~post11; 2513#L66-5 [2020-11-28 02:57:55,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:55,551 INFO L82 PathProgramCache]: Analyzing trace with hash -168608633, now seen corresponding path program 1 times [2020-11-28 02:57:55,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:55,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537288907] [2020-11-28 02:57:55,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:55,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537288907] [2020-11-28 02:57:55,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472503035] [2020-11-28 02:57:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9d1947ce-df8b-41d0-a9a6-bacd13485551/bin/uautomizer/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:55,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-28 02:57:55,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:55,769 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-28 02:57:55,772 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:55,778 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:55,778 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 02:57:55,778 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4 [2020-11-28 02:57:55,852 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2020-11-28 02:57:55,852 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:55,863 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:55,866 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-28 02:57:55,867 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:31, output treesize:27 [2020-11-28 02:57:56,034 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 10 [2020-11-28 02:57:56,035 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:56,041 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:56,043 INFO L545 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 02:57:56,043 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:36, output treesize:3 [2020-11-28 02:57:56,048 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:57:56,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:57:56,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-11-28 02:57:56,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544932325] [2020-11-28 02:57:56,049 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:57:56,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,050 INFO L82 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 4 times [2020-11-28 02:57:56,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309720726] [2020-11-28 02:57:56,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:56,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:56,061 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:56,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:56,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 02:57:56,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:57:56,134 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. cyclomatic complexity: 38 Second operand 9 states. [2020-11-28 02:57:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:56,303 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2020-11-28 02:57:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:57:56,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 82 transitions. [2020-11-28 02:57:56,304 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:56,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2020-11-28 02:57:56,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:57:56,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:57:56,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:57:56,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:56,305 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:56,305 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:56,305 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:56,305 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-28 02:57:56,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:56,305 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:56,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:57:56,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:57:56 BoogieIcfgContainer [2020-11-28 02:57:56,310 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:57:56,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:56,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:56,311 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:56,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:42" (3/4) ... [2020-11-28 02:57:56,315 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:57:56,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:56,315 INFO L168 Benchmark]: Toolchain (without parser) took 14389.11 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 70.7 MB in the beginning and 149.9 MB in the end (delta: -79.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,316 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 79.7 MB. Free memory was 60.6 MB in the beginning and 60.5 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.95 ms. Allocated memory is still 102.8 MB. Free memory was 70.1 MB in the beginning and 77.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.66 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 76.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,317 INFO L168 Benchmark]: Boogie Preprocessor took 40.94 ms. Allocated memory is still 102.8 MB. Free memory was 76.2 MB in the beginning and 74.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,318 INFO L168 Benchmark]: RCFGBuilder took 521.40 ms. Allocated memory is still 102.8 MB. Free memory was 74.5 MB in the beginning and 54.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,318 INFO L168 Benchmark]: BuchiAutomizer took 13361.09 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 54.0 MB in the beginning and 149.9 MB in the end (delta: -95.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:56,320 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 218.1 MB. Free memory is still 149.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:56,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 79.7 MB. Free memory was 60.6 MB in the beginning and 60.5 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.95 ms. Allocated memory is still 102.8 MB. Free memory was 70.1 MB in the beginning and 77.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.66 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 76.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.94 ms. Allocated memory is still 102.8 MB. Free memory was 76.2 MB in the beginning and 74.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 521.40 ms. Allocated memory is still 102.8 MB. Free memory was 74.5 MB in the beginning and 54.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13361.09 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 54.0 MB in the beginning and 149.9 MB in the end (delta: -95.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.77 ms. Allocated memory is still 218.1 MB. Free memory is still 149.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (7 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[A] + -1 * str + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * str + unknown-#length-unknown[A] + -1 * start and consists of 5 locations. One deterministic module has affine ranking function j and consists of 6 locations. 7 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.2s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 11.3s. Construction of modules took 0.6s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 237 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 8. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 313 SDtfs, 527 SDslu, 625 SDs, 0 SdLazy, 547 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU3 SILI1 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital233 mio100 ax100 hnf100 lsp92 ukn63 mio100 lsp41 div100 bol100 ite100 ukn100 eq192 hnf85 smp100 dnf169 smp77 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 5 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 14 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...