./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29f46a81991b9bc0fef856343662e1cc264d2d45 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:40:59,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:40:59,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:40:59,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:40:59,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:40:59,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:40:59,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:40:59,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:40:59,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:40:59,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:40:59,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:40:59,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:40:59,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:40:59,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:40:59,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:40:59,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:40:59,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:40:59,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:40:59,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:40:59,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:40:59,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:40:59,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:40:59,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:40:59,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:40:59,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:40:59,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:40:59,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:40:59,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:40:59,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:40:59,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:40:59,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:40:59,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:40:59,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:40:59,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:40:59,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:40:59,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:40:59,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:40:59,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:40:59,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:40:59,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:40:59,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:40:59,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 22:40:59,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:40:59,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:40:59,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:40:59,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:40:59,641 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:40:59,641 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:40:59,642 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:40:59,642 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:40:59,642 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:40:59,642 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:40:59,643 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:40:59,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:40:59,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:40:59,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:40:59,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:40:59,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:40:59,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:40:59,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:40:59,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:40:59,646 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:40:59,646 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:40:59,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:40:59,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:40:59,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:40:59,647 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:40:59,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:40:59,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:40:59,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:40:59,648 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:40:59,649 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:40:59,649 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_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29f46a81991b9bc0fef856343662e1cc264d2d45 [2020-11-29 22:40:59,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:40:59,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:40:59,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:40:59,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:40:59,994 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:40:59,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i [2020-11-29 22:41:00,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/data/f8cf0ca1a/94f5d643f6c844e58033a6e07354e3a8/FLAG0e223b9a5 [2020-11-29 22:41:00,670 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:41:00,670 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i [2020-11-29 22:41:00,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/data/f8cf0ca1a/94f5d643f6c844e58033a6e07354e3a8/FLAG0e223b9a5 [2020-11-29 22:41:00,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/data/f8cf0ca1a/94f5d643f6c844e58033a6e07354e3a8 [2020-11-29 22:41:00,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:41:00,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:41:00,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:41:00,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:41:00,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:41:00,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:41:00" (1/1) ... [2020-11-29 22:41:00,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d80957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:00, skipping insertion in model container [2020-11-29 22:41:00,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:41:00" (1/1) ... [2020-11-29 22:41:00,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:41:01,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:41:01,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:41:01,449 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:41:01,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:41:01,563 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:41:01,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01 WrapperNode [2020-11-29 22:41:01,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:41:01,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:41:01,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:41:01,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:41:01,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:41:01,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:41:01,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:41:01,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:41:01,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... [2020-11-29 22:41:01,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:41:01,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:41:01,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:41:01,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:41:01,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:41:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:41:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:41:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:41:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:41:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:41:02,156 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:41:02,157 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 22:41:02,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:41:02 BoogieIcfgContainer [2020-11-29 22:41:02,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:41:02,162 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:41:02,162 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:41:02,165 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:41:02,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:41:02,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:41:00" (1/3) ... [2020-11-29 22:41:02,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a01a05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:41:02, skipping insertion in model container [2020-11-29 22:41:02,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:41:02,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:41:01" (2/3) ... [2020-11-29 22:41:02,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a01a05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:41:02, skipping insertion in model container [2020-11-29 22:41:02,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:41:02,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:41:02" (3/3) ... [2020-11-29 22:41:02,179 INFO L373 chiAutomizerObserver]: Analyzing ICFG substring-alloca-1.i [2020-11-29 22:41:02,235 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:41:02,235 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:41:02,235 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:41:02,236 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:41:02,236 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:41:02,236 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:41:02,237 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:41:02,237 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:41:02,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-29 22:41:02,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:41:02,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:41:02,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:41:02,279 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 22:41:02,279 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 22:41:02,279 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:41:02,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-29 22:41:02,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:41:02,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:41:02,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:41:02,283 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 22:41:02,284 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 22:41:02,291 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 9#L565true assume !(main_~length1~0 < 1); 13#L565-2true assume !(main_~length2~0 < 1); 8#L568-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 4#L550-3true [2020-11-29 22:41:02,291 INFO L796 eck$LassoCheckResult]: Loop: 4#L550-3true call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 19#L550-1true assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 3#L553-5true assume !true; 5#L553-6true call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 6#L557true assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 4#L550-3true [2020-11-29 22:41:02,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:02,298 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-29 22:41:02,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:02,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969214325] [2020-11-29 22:41:02,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:02,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:02,536 INFO L82 PathProgramCache]: Analyzing trace with hash 47887114, now seen corresponding path program 1 times [2020-11-29 22:41:02,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:02,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298454099] [2020-11-29 22:41:02,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:02,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298454099] [2020-11-29 22:41:02,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:02,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:41:02,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864567044] [2020-11-29 22:41:02,612 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:41:02,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:02,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:41:02,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:41:02,629 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-11-29 22:41:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:02,635 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2020-11-29 22:41:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:41:02,637 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2020-11-29 22:41:02,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:41:02,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 16 transitions. [2020-11-29 22:41:02,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-11-29 22:41:02,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-29 22:41:02,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2020-11-29 22:41:02,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:41:02,645 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-29 22:41:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2020-11-29 22:41:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 22:41:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 22:41:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-11-29 22:41:02,668 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-29 22:41:02,668 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-29 22:41:02,668 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:41:02,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-11-29 22:41:02,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 22:41:02,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:41:02,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:41:02,670 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 22:41:02,670 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:02,670 INFO L794 eck$LassoCheckResult]: Stem: 48#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 44#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 45#L565 assume !(main_~length1~0 < 1); 49#L565-2 assume !(main_~length2~0 < 1); 50#L568-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 51#L550-3 [2020-11-29 22:41:02,670 INFO L796 eck$LassoCheckResult]: Loop: 51#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 52#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 42#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 43#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 53#L553-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 46#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 47#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 51#L550-3 [2020-11-29 22:41:02,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:02,671 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-11-29 22:41:02,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:02,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370287327] [2020-11-29 22:41:02,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,725 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:02,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:02,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1237496093, now seen corresponding path program 1 times [2020-11-29 22:41:02,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:02,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806756646] [2020-11-29 22:41:02,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:02,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1302992386, now seen corresponding path program 1 times [2020-11-29 22:41:02,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:02,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188344227] [2020-11-29 22:41:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:02,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:02,847 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:03,109 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2020-11-29 22:41:03,547 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-11-29 22:41:03,685 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-11-29 22:41:03,696 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:41:03,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:41:03,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:41:03,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:41:03,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:41:03,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:03,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:41:03,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:41:03,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration2_Lasso [2020-11-29 22:41:03,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:41:03,698 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:41:03,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:03,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:03,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:03,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:03,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:03,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:03,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:03,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,209 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-11-29 22:41:04,442 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-11-29 22:41:04,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:04,973 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-11-29 22:41:05,232 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:41:05,237 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,246 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 [2020-11-29 22:41:05,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:05,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:05,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:05,252 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,275 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 [2020-11-29 22:41:05,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:05,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:05,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:05,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:05,302 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 [2020-11-29 22:41:05,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:05,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:41:05,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:05,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:05,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:05,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:05,376 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 [2020-11-29 22:41:05,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:05,408 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 [2020-11-29 22:41:05,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:05,457 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 [2020-11-29 22:41:05,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:05,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:05,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:05,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,485 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 [2020-11-29 22:41:05,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:05,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,486 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-11-29 22:41:05,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,494 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 22:41:05,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:05,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,532 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 [2020-11-29 22:41:05,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:41:05,619 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 [2020-11-29 22:41:05,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:41:05,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,713 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 [2020-11-29 22:41:05,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,754 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 [2020-11-29 22:41:05,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:05,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:05,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:05,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,782 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 [2020-11-29 22:41:05,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,810 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:05,834 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 [2020-11-29 22:41:05,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,838 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,838 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:05,866 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 [2020-11-29 22:41:05,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:05,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:05,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:05,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:05,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:05,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:05,903 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:41:06,081 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-29 22:41:06,082 INFO L444 ModelExtractionUtils]: 23 out of 31 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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) [2020-11-29 22:41:06,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:41:06,112 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 22:41:06,113 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:41:06,114 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1) = -1*ULTIMATE.start_substring_~ps~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1 Supporting invariants [] Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:06,180 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-11-29 22:41:06,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 22:41:06,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:06,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 22:41:06,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:06,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 22:41:06,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:06,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:06,303 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 22:41:06,304 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-29 22:41:06,394 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 19 states and 26 transitions. Complement of second has 4 states. [2020-11-29 22:41:06,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 22:41:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:41:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-11-29 22:41:06,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 5 letters. Loop has 7 letters. [2020-11-29 22:41:06,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:06,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 12 letters. Loop has 7 letters. [2020-11-29 22:41:06,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:06,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 5 letters. Loop has 14 letters. [2020-11-29 22:41:06,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:06,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-11-29 22:41:06,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 22:41:06,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 24 transitions. [2020-11-29 22:41:06,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-29 22:41:06,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-29 22:41:06,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2020-11-29 22:41:06,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:41:06,401 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-11-29 22:41:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2020-11-29 22:41:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-29 22:41:06,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 22:41:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2020-11-29 22:41:06,403 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-11-29 22:41:06,403 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-11-29 22:41:06,404 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:41:06,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2020-11-29 22:41:06,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 22:41:06,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:41:06,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:41:06,405 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:06,405 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 22:41:06,410 INFO L794 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 174#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 175#L565 assume !(main_~length1~0 < 1); 183#L565-2 assume !(main_~length2~0 < 1); 184#L568-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 178#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 180#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 170#L553-5 [2020-11-29 22:41:06,410 INFO L796 eck$LassoCheckResult]: Loop: 170#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 171#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 185#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 170#L553-5 [2020-11-29 22:41:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:06,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2020-11-29 22:41:06,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:06,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176253727] [2020-11-29 22:41:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:06,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:06,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:06,491 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:06,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:06,499 INFO L82 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 1 times [2020-11-29 22:41:06,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:06,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676904186] [2020-11-29 22:41:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:06,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:06,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:06,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:06,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:06,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1594173083, now seen corresponding path program 1 times [2020-11-29 22:41:06,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:06,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860294539] [2020-11-29 22:41:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:06,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:06,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:06,604 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:06,787 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-11-29 22:41:07,366 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 98 [2020-11-29 22:41:07,544 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-29 22:41:07,551 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:41:07,551 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:41:07,551 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:41:07,551 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:41:07,551 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:41:07,551 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:07,551 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:41:07,551 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:41:07,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration3_Lasso [2020-11-29 22:41:07,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:41:07,552 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:41:07,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:07,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,233 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2020-11-29 22:41:08,469 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-11-29 22:41:08,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:08,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:09,192 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:41:09,192 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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) [2020-11-29 22:41:09,205 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 [2020-11-29 22:41:09,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,238 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 [2020-11-29 22:41:09,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,241 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,265 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 [2020-11-29 22:41:09,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:09,271 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,300 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 [2020-11-29 22:41:09,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,334 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 [2020-11-29 22:41:09,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,358 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 [2020-11-29 22:41:09,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,386 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 [2020-11-29 22:41:09,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,410 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 [2020-11-29 22:41:09,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,413 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 22:41:09,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:09,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,480 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 [2020-11-29 22:41:09,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,505 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 [2020-11-29 22:41:09,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:09,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:09,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:09,518 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,543 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 [2020-11-29 22:41:09,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:09,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,588 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 [2020-11-29 22:41:09,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:09,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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) [2020-11-29 22:41:09,638 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 [2020-11-29 22:41:09,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:09,651 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:41:09,687 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 [2020-11-29 22:41:09,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,689 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 22:41:09,689 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 22:41:09,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,698 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-11-29 22:41:09,698 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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) [2020-11-29 22:41:09,772 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 [2020-11-29 22:41:09,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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) [2020-11-29 22:41:09,819 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 [2020-11-29 22:41:09,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:09,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,849 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 [2020-11-29 22:41:09,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,855 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:09,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,898 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 [2020-11-29 22:41:09,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:09,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:09,950 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 [2020-11-29 22:41:09,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:09,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:09,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:09,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:09,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:09,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:10,004 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:41:10,147 INFO L443 ModelExtractionUtils]: Simplification made 36 calls to the SMT solver. [2020-11-29 22:41:10,147 INFO L444 ModelExtractionUtils]: 13 out of 55 variables were initially zero. Simplification set additionally 39 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:10,154 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:41:10,156 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 22:41:10,157 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:41:10,157 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_substring_~pt~0.base)_2, ULTIMATE.start_substring_~pt~0.offset) = 1*v_rep(select #length ULTIMATE.start_substring_~pt~0.base)_2 - 1*ULTIMATE.start_substring_~pt~0.offset Supporting invariants [] [2020-11-29 22:41:10,271 INFO L297 tatePredicateManager]: 21 out of 21 supporting invariants were superfluous and have been removed [2020-11-29 22:41:10,273 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 22:41:10,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:10,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:41:10,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:10,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 22:41:10,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:10,344 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 22:41:10,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-11-29 22:41:10,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 40 states and 54 transitions. Complement of second has 5 states. [2020-11-29 22:41:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 22:41:10,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:41:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-11-29 22:41:10,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 7 letters. Loop has 3 letters. [2020-11-29 22:41:10,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:10,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 10 letters. Loop has 3 letters. [2020-11-29 22:41:10,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:10,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 7 letters. Loop has 6 letters. [2020-11-29 22:41:10,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:10,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 54 transitions. [2020-11-29 22:41:10,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 22:41:10,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 28 states and 38 transitions. [2020-11-29 22:41:10,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 22:41:10,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 22:41:10,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 38 transitions. [2020-11-29 22:41:10,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:41:10,386 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-11-29 22:41:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 38 transitions. [2020-11-29 22:41:10,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2020-11-29 22:41:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 22:41:10,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2020-11-29 22:41:10,390 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-11-29 22:41:10,390 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-11-29 22:41:10,390 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:41:10,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 32 transitions. [2020-11-29 22:41:10,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 22:41:10,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:41:10,391 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:41:10,392 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:10,392 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 22:41:10,392 INFO L794 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 366#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 367#L565 assume !(main_~length1~0 < 1); 376#L565-2 assume !(main_~length2~0 < 1); 377#L568-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 370#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 371#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 381#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 383#L553-1 assume !substring_#t~short6; 382#L553-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 368#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 369#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 372#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 374#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 362#L553-5 [2020-11-29 22:41:10,393 INFO L796 eck$LassoCheckResult]: Loop: 362#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 363#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 378#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 362#L553-5 [2020-11-29 22:41:10,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:10,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2012026433, now seen corresponding path program 1 times [2020-11-29 22:41:10,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:10,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665951890] [2020-11-29 22:41:10,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:10,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665951890] [2020-11-29 22:41:10,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:10,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:41:10,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059104325] [2020-11-29 22:41:10,449 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:41:10,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:10,449 INFO L82 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 2 times [2020-11-29 22:41:10,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:10,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731613476] [2020-11-29 22:41:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,461 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:10,588 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-11-29 22:41:10,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:10,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:41:10,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:41:10,668 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. cyclomatic complexity: 12 Second operand 5 states. [2020-11-29 22:41:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:10,703 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2020-11-29 22:41:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:41:10,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-11-29 22:41:10,705 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 22:41:10,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 34 transitions. [2020-11-29 22:41:10,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 22:41:10,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 22:41:10,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2020-11-29 22:41:10,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:41:10,706 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2020-11-29 22:41:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2020-11-29 22:41:10,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-11-29 22:41:10,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-29 22:41:10,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2020-11-29 22:41:10,709 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2020-11-29 22:41:10,709 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2020-11-29 22:41:10,709 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 22:41:10,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions. [2020-11-29 22:41:10,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 22:41:10,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:41:10,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:41:10,712 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:10,712 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 22:41:10,712 INFO L794 eck$LassoCheckResult]: Stem: 430#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 424#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 425#L565 assume !(main_~length1~0 < 1); 431#L565-2 assume !(main_~length2~0 < 1); 432#L568-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 433#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 434#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 443#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 445#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 444#L553-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 438#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 439#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 435#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 437#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 426#L553-5 [2020-11-29 22:41:10,712 INFO L796 eck$LassoCheckResult]: Loop: 426#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 427#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 440#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 426#L553-5 [2020-11-29 22:41:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:10,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1954768131, now seen corresponding path program 2 times [2020-11-29 22:41:10,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:10,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22576427] [2020-11-29 22:41:10,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:10,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:10,751 INFO L82 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 3 times [2020-11-29 22:41:10,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:10,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850661730] [2020-11-29 22:41:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,761 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:10,762 INFO L82 PathProgramCache]: Analyzing trace with hash -964145949, now seen corresponding path program 1 times [2020-11-29 22:41:10,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:10,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900287557] [2020-11-29 22:41:10,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:10,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:10,854 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:10,976 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-11-29 22:41:11,709 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 139 [2020-11-29 22:41:11,885 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-29 22:41:11,887 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:41:11,887 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:41:11,887 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:41:11,887 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:41:11,888 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:41:11,888 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:11,888 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:41:11,888 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:41:11,888 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration5_Lasso [2020-11-29 22:41:11,888 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:41:11,888 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:41:11,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:11,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,619 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 94 [2020-11-29 22:41:12,848 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-11-29 22:41:12,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:12,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:41:13,883 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-29 22:41:14,026 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:41:14,026 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,039 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 [2020-11-29 22:41:14,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,064 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 [2020-11-29 22:41:14,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,067 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,089 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 [2020-11-29 22:41:14,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,128 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 [2020-11-29 22:41:14,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,152 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 [2020-11-29 22:41:14,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,176 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 [2020-11-29 22:41:14,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:14,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:14,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,201 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 [2020-11-29 22:41:14,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,205 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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 [2020-11-29 22:41:14,226 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 [2020-11-29 22:41:14,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:14,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:14,238 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/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) [2020-11-29 22:41:14,278 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 [2020-11-29 22:41:14,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:14,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:14,317 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 [2020-11-29 22:41:14,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:14,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:14,323 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:14,344 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 [2020-11-29 22:41:14,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:14,369 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 [2020-11-29 22:41:14,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,372 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:14,394 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 [2020-11-29 22:41:14,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:41:14,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:41:14,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 22:41:14,397 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:14,418 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 [2020-11-29 22:41:14,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:41:14,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:41:14,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:41:14,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:41:14,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:41:14,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:41:14,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:41:14,499 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-29 22:41:14,499 INFO L444 ModelExtractionUtils]: 39 out of 58 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b300d61a-14fc-46cc-b57a-ba87de91a7c3/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:41:14,503 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:41:14,505 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 22:41:14,505 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:41:14,505 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3, ULTIMATE.start_substring_~ps2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 - 1*ULTIMATE.start_substring_~ps2~0.offset Supporting invariants [] [2020-11-29 22:41:14,679 INFO L297 tatePredicateManager]: 38 out of 41 supporting invariants were superfluous and have been removed [2020-11-29 22:41:14,684 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 22:41:14,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:14,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 22:41:14,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:14,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 22:41:14,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:14,836 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 [2020-11-29 22:41:14,836 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-29 22:41:14,942 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 42 states and 54 transitions. Complement of second has 8 states. [2020-11-29 22:41:14,945 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 [2020-11-29 22:41:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 22:41:14,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-11-29 22:41:14,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-29 22:41:14,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:14,946 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 22:41:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:15,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 22:41:15,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:15,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 22:41:15,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:15,066 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 22:41:15,066 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-29 22:41:15,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 42 states and 54 transitions. Complement of second has 8 states. [2020-11-29 22:41:15,134 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 [2020-11-29 22:41:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 22:41:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-11-29 22:41:15,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-29 22:41:15,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:15,135 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 22:41:15,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:15,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 22:41:15,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:15,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 22:41:15,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:41:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:15,292 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 22:41:15,292 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-11-29 22:41:15,356 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 50 states and 66 transitions. Complement of second has 7 states. [2020-11-29 22:41:15,358 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 [2020-11-29 22:41:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 22:41:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2020-11-29 22:41:15,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-29 22:41:15,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:15,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-29 22:41:15,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:15,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 6 letters. [2020-11-29 22:41:15,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:41:15,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2020-11-29 22:41:15,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 22:41:15,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 54 transitions. [2020-11-29 22:41:15,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 22:41:15,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-29 22:41:15,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 54 transitions. [2020-11-29 22:41:15,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:41:15,365 INFO L691 BuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2020-11-29 22:41:15,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 54 transitions. [2020-11-29 22:41:15,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-11-29 22:41:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-29 22:41:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2020-11-29 22:41:15,368 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 52 transitions. [2020-11-29 22:41:15,368 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 52 transitions. [2020-11-29 22:41:15,368 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 22:41:15,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 52 transitions. [2020-11-29 22:41:15,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 22:41:15,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:41:15,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:41:15,370 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:41:15,370 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 22:41:15,371 INFO L794 eck$LassoCheckResult]: Stem: 973#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 958#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 959#L565 assume !(main_~length1~0 < 1); 964#L565-2 assume !(main_~length2~0 < 1); 965#L568-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 966#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 967#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 991#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 981#L553-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 980#L553-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 971#L553-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 972#L557 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 968#L550-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 970#L550-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 979#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 961#L553-1 [2020-11-29 22:41:15,371 INFO L796 eck$LassoCheckResult]: Loop: 961#L553-1 assume !substring_#t~short6; 974#L553-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 960#L553-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 961#L553-1 [2020-11-29 22:41:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:15,371 INFO L82 PathProgramCache]: Analyzing trace with hash 468269947, now seen corresponding path program 3 times [2020-11-29 22:41:15,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:15,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608192186] [2020-11-29 22:41:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:15,386 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:41:15,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:41:15,406 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:41:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:41:15,407 INFO L82 PathProgramCache]: Analyzing trace with hash 64727, now seen corresponding path program 1 times [2020-11-29 22:41:15,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:41:15,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415493026] [2020-11-29 22:41:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:41:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:41:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:41:15,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415493026] [2020-11-29 22:41:15,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:41:15,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:41:15,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580423146] [2020-11-29 22:41:15,442 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:41:15,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:41:15,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:41:15,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:41:15,443 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. cyclomatic complexity: 18 Second operand 3 states. [2020-11-29 22:41:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:41:15,482 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2020-11-29 22:41:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:41:15,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2020-11-29 22:41:15,488 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:41:15,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2020-11-29 22:41:15,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:41:15,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:41:15,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:41:15,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:41:15,488 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:41:15,488 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:41:15,488 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:41:15,488 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 22:41:15,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:41:15,488 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:41:15,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:41:15,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:41:15 BoogieIcfgContainer [2020-11-29 22:41:15,493 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:41:15,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:41:15,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:41:15,494 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:41:15,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:41:02" (3/4) ... [2020-11-29 22:41:15,497 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:41:15,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:41:15,500 INFO L168 Benchmark]: Toolchain (without parser) took 14537.76 ms. Allocated memory was 81.8 MB in the beginning and 211.8 MB in the end (delta: 130.0 MB). Free memory was 50.7 MB in the beginning and 81.9 MB in the end (delta: -31.2 MB). Peak memory consumption was 97.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:15,501 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 41.3 MB in the beginning and 41.2 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:41:15,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.58 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 49.6 MB in the end (delta: 959.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:15,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.40 ms. Allocated memory is still 81.8 MB. Free memory was 49.2 MB in the beginning and 47.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:15,512 INFO L168 Benchmark]: Boogie Preprocessor took 23.31 ms. Allocated memory is still 81.8 MB. Free memory was 47.4 MB in the beginning and 46.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:41:15,515 INFO L168 Benchmark]: RCFGBuilder took 523.59 ms. Allocated memory is still 81.8 MB. Free memory was 46.2 MB in the beginning and 29.9 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:15,517 INFO L168 Benchmark]: BuchiAutomizer took 13331.63 ms. Allocated memory was 81.8 MB in the beginning and 211.8 MB in the end (delta: 130.0 MB). Free memory was 29.9 MB in the beginning and 81.9 MB in the end (delta: -52.0 MB). Peak memory consumption was 79.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:41:15,517 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 211.8 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:41:15,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 41.3 MB in the beginning and 41.2 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 600.58 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 49.6 MB in the end (delta: 959.4 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.40 ms. Allocated memory is still 81.8 MB. Free memory was 49.2 MB in the beginning and 47.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.31 ms. Allocated memory is still 81.8 MB. Free memory was 47.4 MB in the beginning and 46.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 523.59 ms. Allocated memory is still 81.8 MB. Free memory was 46.2 MB in the beginning and 29.9 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13331.63 ms. Allocated memory was 81.8 MB in the beginning and 211.8 MB in the end (delta: 130.0 MB). Free memory was 29.9 MB in the beginning and 81.9 MB in the end (delta: -52.0 MB). Peak memory consumption was 79.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.64 ms. Allocated memory is still 211.8 MB. Free memory is still 81.9 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * ps + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[pt] + -1 * pt and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * ps2 and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 12.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 39 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 109 SDtfs, 101 SDslu, 57 SDs, 0 SdLazy, 103 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital245 mio100 ax107 hnf99 lsp90 ukn84 mio100 lsp40 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf183 smp75 tf100 neg92 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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...