./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-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_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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 c10d45b5c95e322c3a9476f6a89ce233987fcc3d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:58,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:58,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:58,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:58,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:58,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:58,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:58,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:58,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:58,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:58,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:58,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:58,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:58,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:58,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:58,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:58,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:58,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:58,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:58,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:58,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:58,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:58,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:58,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:58,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:58,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:58,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:58,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:58,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:58,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:58,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:58,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:58,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:58,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:58,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:58,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:58,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:58,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:58,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:58,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:58,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:58,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 02:56:58,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:58,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:58,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:58,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:58,339 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:58,339 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:56:58,339 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:56:58,339 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:56:58,340 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:56:58,340 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:56:58,341 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:56:58,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:58,341 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:56:58,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:58,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:58,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:56:58,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:56:58,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:56:58,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:58,343 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:56:58,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:58,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:56:58,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:58,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:58,344 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:56:58,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:58,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:58,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:58,345 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:56:58,347 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:56:58,348 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_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c10d45b5c95e322c3a9476f6a89ce233987fcc3d [2020-11-28 02:56:58,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:58,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:58,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:58,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:58,663 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:58,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2020-11-28 02:56:58,757 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/data/dca52111a/42f25ceac646412a9d6aea69cc13e658/FLAG7e648f9c7 [2020-11-28 02:56:59,349 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:59,350 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2020-11-28 02:56:59,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/data/dca52111a/42f25ceac646412a9d6aea69cc13e658/FLAG7e648f9c7 [2020-11-28 02:56:59,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/data/dca52111a/42f25ceac646412a9d6aea69cc13e658 [2020-11-28 02:56:59,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:59,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:59,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:59,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:59,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:59,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:59" (1/1) ... [2020-11-28 02:56:59,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f14ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:59, skipping insertion in model container [2020-11-28 02:56:59,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:59" (1/1) ... [2020-11-28 02:56:59,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:59,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:59,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:59,988 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:00,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:00,073 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:00,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00 WrapperNode [2020-11-28 02:57:00,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:00,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:00,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:00,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:00,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:00,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:00,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:00,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:00,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... [2020-11-28 02:57:00,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:00,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:00,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:00,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:00,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:57:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:57:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:00,549 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:00,549 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:57:00,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:00 BoogieIcfgContainer [2020-11-28 02:57:00,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:00,552 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:00,553 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:00,562 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:00,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:00,563 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:56:59" (1/3) ... [2020-11-28 02:57:00,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f087531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:00, skipping insertion in model container [2020-11-28 02:57:00,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:00,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:00" (2/3) ... [2020-11-28 02:57:00,565 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f087531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:00, skipping insertion in model container [2020-11-28 02:57:00,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:00,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:00" (3/3) ... [2020-11-28 02:57:00,567 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca-1.i [2020-11-28 02:57:00,618 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:00,619 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:00,619 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:00,619 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:00,619 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:00,619 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:00,619 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:00,619 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:00,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-28 02:57:00,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 02:57:00,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:00,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:00,657 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:00,658 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:00,658 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:00,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-28 02:57:00,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 02:57:00,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:00,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:00,660 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:00,660 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:00,668 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, 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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 10#L562true assume !(main_~length1~0 < 1); 14#L562-2true assume !(main_~length2~0 < 1); 6#L565-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 16#L553-4true [2020-11-28 02:57:00,668 INFO L796 eck$LassoCheckResult]: Loop: 16#L553-4true cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 11#L552-1true assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 13#L553-3true assume !true; 16#L553-4true [2020-11-28 02:57:00,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:00,690 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-28 02:57:00,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:00,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120006578] [2020-11-28 02:57:00,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:00,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:00,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:00,932 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:00,938 INFO L82 PathProgramCache]: Analyzing trace with hash 49828, now seen corresponding path program 1 times [2020-11-28 02:57:00,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:00,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024201006] [2020-11-28 02:57:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:01,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024201006] [2020-11-28 02:57:01,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:01,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 02:57:01,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400125649] [2020-11-28 02:57:01,013 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:57:01,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:01,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:57:01,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:57:01,029 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-11-28 02:57:01,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:01,035 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-11-28 02:57:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:57:01,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-11-28 02:57:01,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 02:57:01,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2020-11-28 02:57:01,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 02:57:01,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 02:57:01,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-11-28 02:57:01,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:01,044 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 02:57:01,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-11-28 02:57:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-28 02:57:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 02:57:01,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-11-28 02:57:01,070 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 02:57:01,071 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 02:57:01,071 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:57:01,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-11-28 02:57:01,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 02:57:01,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:01,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:01,072 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 02:57:01,072 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:01,073 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, 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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 39#L562 assume !(main_~length1~0 < 1); 45#L562-2 assume !(main_~length2~0 < 1); 40#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 41#L553-4 [2020-11-28 02:57:01,073 INFO L796 eck$LassoCheckResult]: Loop: 41#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 46#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 47#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 43#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 41#L553-4 [2020-11-28 02:57:01,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:01,073 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-11-28 02:57:01,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:01,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045653973] [2020-11-28 02:57:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:01,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:01,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:01,138 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:01,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1544297, now seen corresponding path program 1 times [2020-11-28 02:57:01,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:01,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287834357] [2020-11-28 02:57:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:01,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:01,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:01,178 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:01,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:01,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1298350894, now seen corresponding path program 1 times [2020-11-28 02:57:01,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:01,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348487852] [2020-11-28 02:57:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:01,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:01,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:01,281 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:01,419 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-11-28 02:57:01,891 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-11-28 02:57:02,022 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-28 02:57:02,051 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:02,052 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:02,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:02,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:02,054 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:02,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:02,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:02,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:02,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration2_Lasso [2020-11-28 02:57:02,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:02,058 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:02,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,499 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-11-28 02:57:02,640 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-28 02:57:02,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:02,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:03,318 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:03,323 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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) [2020-11-28 02:57:03,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:03,384 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:03,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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 [2020-11-28 02:57:03,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:03,457 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:03,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:03,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:03,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:03,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:03,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:03,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:03,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:03,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:03,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:03,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:03,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:03,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:03,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:03,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:03,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:03,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:03,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:03,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:03,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:03,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:03,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:03,822 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:04,049 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-28 02:57:04,049 INFO L444 ModelExtractionUtils]: 5 out of 25 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:04,090 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:57:04,093 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:04,093 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:04,094 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s1.offset, v_rep(select #length ULTIMATE.start_cstrpbrk_~s1.base)_1) = -1*ULTIMATE.start_cstrpbrk_~s1.offset + 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~s1.base)_1 Supporting invariants [] [2020-11-28 02:57:04,152 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 02:57:04,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:04,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:04,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 02:57:04,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:04,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 02:57:04,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:04,313 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 02:57:04,313 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-28 02:57:04,347 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 20 transitions. Complement of second has 4 states. [2020-11-28 02:57:04,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:57:04,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2020-11-28 02:57:04,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-28 02:57:04,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:04,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-28 02:57:04,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:04,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-28 02:57:04,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:04,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2020-11-28 02:57:04,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:04,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 19 transitions. [2020-11-28 02:57:04,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-28 02:57:04,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 02:57:04,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2020-11-28 02:57:04,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:04,360 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-28 02:57:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2020-11-28 02:57:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-11-28 02:57:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-28 02:57:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2020-11-28 02:57:04,363 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-11-28 02:57:04,363 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-11-28 02:57:04,363 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:57:04,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2020-11-28 02:57:04,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:04,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:04,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:04,368 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:04,368 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:04,368 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 149#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, 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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 150#L562 assume !(main_~length1~0 < 1); 157#L562-2 assume !(main_~length2~0 < 1); 147#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 148#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 158#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 160#L553-3 [2020-11-28 02:57:04,369 INFO L796 eck$LassoCheckResult]: Loop: 160#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 152#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 153#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 160#L553-3 [2020-11-28 02:57:04,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2020-11-28 02:57:04,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:04,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374649897] [2020-11-28 02:57:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:04,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:04,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:04,434 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:04,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,435 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 1 times [2020-11-28 02:57:04,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:04,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040393313] [2020-11-28 02:57:04,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:04,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:04,443 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:04,445 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:04,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:04,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1594172151, now seen corresponding path program 1 times [2020-11-28 02:57:04,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:04,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992438984] [2020-11-28 02:57:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:04,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:04,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:04,506 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:05,140 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 101 [2020-11-28 02:57:05,335 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-28 02:57:05,338 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:05,338 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:05,339 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:05,339 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:05,339 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:05,339 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:05,339 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:05,339 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:05,339 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration3_Lasso [2020-11-28 02:57:05,339 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:05,339 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:05,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,756 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-11-28 02:57:05,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:05,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:06,546 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:06,546 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:06,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:06,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:06,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:06,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:06,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:06,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:06,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:06,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:06,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,677 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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 [2020-11-28 02:57:06,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:06,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:06,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:06,721 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:06,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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 [2020-11-28 02:57:06,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:06,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:06,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:06,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:06,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:06,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:06,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:06,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:06,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:07,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:07,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:07,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:07,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:07,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:07,025 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:07,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:07,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:07,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:07,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:07,087 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 02:57:07,087 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2020-11-28 02:57:07,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:07,122 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2020-11-28 02:57:07,122 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2020-11-28 02:57:07,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:07,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:07,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:07,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:07,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:07,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:07,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:07,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:07,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:07,326 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2020-11-28 02:57:07,326 INFO L444 ModelExtractionUtils]: 10 out of 37 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/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) [2020-11-28 02:57:07,333 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:07,337 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:07,338 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:07,338 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2020-11-28 02:57:07,443 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-11-28 02:57:07,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:07,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:07,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 02:57:07,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:07,542 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 02:57:07,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:07,573 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 02:57:07,574 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-28 02:57:07,675 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 31 states and 38 transitions. Complement of second has 6 states. [2020-11-28 02:57:07,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-28 02:57:07,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2020-11-28 02:57:07,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:07,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2020-11-28 02:57:07,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:07,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2020-11-28 02:57:07,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:07,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2020-11-28 02:57:07,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:07,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 27 transitions. [2020-11-28 02:57:07,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-28 02:57:07,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-28 02:57:07,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2020-11-28 02:57:07,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:07,681 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2020-11-28 02:57:07,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2020-11-28 02:57:07,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2020-11-28 02:57:07,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:57:07,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2020-11-28 02:57:07,682 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-28 02:57:07,682 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-28 02:57:07,682 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 02:57:07,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2020-11-28 02:57:07,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:07,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:07,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:07,684 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:07,684 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:07,684 INFO L794 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 303#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, 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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 304#L562 assume !(main_~length1~0 < 1); 313#L562-2 assume !(main_~length2~0 < 1); 305#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 306#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 314#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 315#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 310#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 311#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 317#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 316#L553-3 [2020-11-28 02:57:07,684 INFO L796 eck$LassoCheckResult]: Loop: 316#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 308#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 309#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 316#L553-3 [2020-11-28 02:57:07,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:07,684 INFO L82 PathProgramCache]: Analyzing trace with hash -2120273357, now seen corresponding path program 2 times [2020-11-28 02:57:07,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:07,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539515824] [2020-11-28 02:57:07,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:07,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:07,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:07,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:07,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:07,760 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 2 times [2020-11-28 02:57:07,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:07,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985556525] [2020-11-28 02:57:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:07,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:07,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:07,773 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:07,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:07,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1020472847, now seen corresponding path program 1 times [2020-11-28 02:57:07,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:07,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453079425] [2020-11-28 02:57:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:07,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:07,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453079425] [2020-11-28 02:57:07,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290232486] [2020-11-28 02:57:07,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:57:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:07,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 42 conjunts are in the unsatisfiable core [2020-11-28 02:57:07,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:08,005 INFO L350 Elim1Store]: treesize reduction 38, result has 20.8 percent of original size [2020-11-28 02:57:08,005 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 20 [2020-11-28 02:57:08,006 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:08,014 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:08,016 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-11-28 02:57:08,016 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:39, output treesize:23 [2020-11-28 02:57:08,314 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 9 [2020-11-28 02:57:08,360 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-28 02:57:08,360 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:08,362 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:08,362 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 02:57:08,362 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2020-11-28 02:57:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:08,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:57:08,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-11-28 02:57:08,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555923986] [2020-11-28 02:57:08,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:08,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 02:57:08,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-11-28 02:57:08,426 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 12 states. [2020-11-28 02:57:08,622 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2020-11-28 02:57:08,815 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 15 [2020-11-28 02:57:09,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:09,205 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-11-28 02:57:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:57:09,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2020-11-28 02:57:09,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:09,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 24 states and 28 transitions. [2020-11-28 02:57:09,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-28 02:57:09,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-28 02:57:09,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2020-11-28 02:57:09,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:57:09,208 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-11-28 02:57:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2020-11-28 02:57:09,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2020-11-28 02:57:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 02:57:09,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2020-11-28 02:57:09,210 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-11-28 02:57:09,210 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-11-28 02:57:09,211 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 02:57:09,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2020-11-28 02:57:09,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:57:09,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:09,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:09,212 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:09,212 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:57:09,212 INFO L794 eck$LassoCheckResult]: Stem: 418#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 414#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, 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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 415#L562 assume !(main_~length1~0 < 1); 423#L562-2 assume !(main_~length2~0 < 1); 416#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.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);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 417#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 424#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 425#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 421#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 422#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 429#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 430#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 427#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 428#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 426#L553-3 [2020-11-28 02:57:09,212 INFO L796 eck$LassoCheckResult]: Loop: 426#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 419#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 420#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 426#L553-3 [2020-11-28 02:57:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:09,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1095399647, now seen corresponding path program 2 times [2020-11-28 02:57:09,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:09,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713043033] [2020-11-28 02:57:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:09,228 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:09,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:09,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:09,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:09,259 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 3 times [2020-11-28 02:57:09,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:09,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605877764] [2020-11-28 02:57:09,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:09,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:09,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:09,266 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:09,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:09,266 INFO L82 PathProgramCache]: Analyzing trace with hash -110602269, now seen corresponding path program 3 times [2020-11-28 02:57:09,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:09,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608072423] [2020-11-28 02:57:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:09,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:09,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:09,305 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:10,277 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 162 [2020-11-28 02:57:10,532 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-11-28 02:57:10,534 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:57:10,534 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:57:10,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:57:10,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:57:10,535 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:57:10,535 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:10,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:57:10,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:57:10,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration5_Lasso [2020-11-28 02:57:10,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:57:10,535 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:57:10,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:10,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:10,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,068 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2020-11-28 02:57:11,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:57:11,457 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-11-28 02:57:12,358 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-28 02:57:12,500 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:57:12,500 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:12,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:12,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:12,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:12,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:12,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:12,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:12,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:12,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:12,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:57:12,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:12,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:12,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:12,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:57:12,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:57:12,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:12,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:12,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:12,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:12,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:12,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:12,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:12,585 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:57:12,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:12,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:12,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:12,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:12,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:12,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:12,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:12,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:12,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:12,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:12,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:12,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:12,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:12,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:12,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:12,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:12,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:12,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:12,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:12,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:12,697 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:57:12,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:57:12,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:57:12,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:57:12,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:57:12,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:57:12,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:57:12,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:57:12,794 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 02:57:12,794 INFO L444 ModelExtractionUtils]: 37 out of 49 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2b0d861-ccbd-48b0-8781-6e6fc2f4beca/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:12,796 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 02:57:12,798 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:57:12,799 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:57:12,799 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2020-11-28 02:57:12,983 INFO L297 tatePredicateManager]: 30 out of 32 supporting invariants were superfluous and have been removed [2020-11-28 02:57:13,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:57:13,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:13,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:57:13,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:13,100 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 02:57:13,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:13,131 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 02:57:13,131 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-28 02:57:13,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2020-11-28 02:57:13,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:13,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-28 02:57:13,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-28 02:57:13,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:13,189 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 02:57:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:13,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:57:13,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:13,315 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 02:57:13,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:13,361 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 02:57:13,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-28 02:57:13,436 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 29 states and 36 transitions. Complement of second has 6 states. [2020-11-28 02:57:13,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-28 02:57:13,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-28 02:57:13,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:13,439 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 02:57:13,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:13,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:57:13,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:13,543 WARN L261 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-28 02:57:13,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:13,569 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 02:57:13,569 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-28 02:57:13,625 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 24 states and 29 transitions. Complement of second has 5 states. [2020-11-28 02:57:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:57:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:57:13,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-11-28 02:57:13,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2020-11-28 02:57:13,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:13,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-28 02:57:13,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:13,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 14 letters. Loop has 6 letters. [2020-11-28 02:57:13,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:57:13,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2020-11-28 02:57:13,629 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:13,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-11-28 02:57:13,629 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:57:13,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:57:13,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:57:13,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:57:13,629 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:13,629 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:13,629 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:13,629 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 02:57:13,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:13,630 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:57:13,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:57:13,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:57:13 BoogieIcfgContainer [2020-11-28 02:57:13,634 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:57:13,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:13,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:13,635 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:13,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:00" (3/4) ... [2020-11-28 02:57:13,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:57:13,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:13,639 INFO L168 Benchmark]: Toolchain (without parser) took 14030.73 ms. Allocated memory was 96.5 MB in the beginning and 211.8 MB in the end (delta: 115.3 MB). Free memory was 61.2 MB in the beginning and 111.6 MB in the end (delta: -50.3 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:13,640 INFO L168 Benchmark]: CDTParser took 10.43 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 78.6 MB in the end (delta: -12.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:13,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.97 ms. Allocated memory is still 96.5 MB. Free memory was 61.0 MB in the beginning and 63.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:13,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 61.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:13,642 INFO L168 Benchmark]: Boogie Preprocessor took 26.13 ms. Allocated memory is still 96.5 MB. Free memory was 61.6 MB in the beginning and 60.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:13,642 INFO L168 Benchmark]: RCFGBuilder took 407.42 ms. Allocated memory is still 96.5 MB. Free memory was 60.2 MB in the beginning and 45.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:13,643 INFO L168 Benchmark]: BuchiAutomizer took 13082.04 ms. Allocated memory was 96.5 MB in the beginning and 211.8 MB in the end (delta: 115.3 MB). Free memory was 45.2 MB in the beginning and 111.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:13,643 INFO L168 Benchmark]: Witness Printer took 3.94 ms. Allocated memory is still 211.8 MB. Free memory is still 111.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:13,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 10.43 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 78.6 MB in the end (delta: -12.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 458.97 ms. Allocated memory is still 96.5 MB. Free memory was 61.0 MB in the beginning and 63.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 61.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.13 ms. Allocated memory is still 96.5 MB. Free memory was 61.6 MB in the beginning and 60.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 407.42 ms. Allocated memory is still 96.5 MB. Free memory was 60.2 MB in the beginning and 45.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13082.04 ms. Allocated memory was 96.5 MB in the beginning and 211.8 MB in the end (delta: 115.3 MB). Free memory was 45.2 MB in the beginning and 111.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.94 ms. Allocated memory is still 211.8 MB. Free memory is still 111.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[s1] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * scanp and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * scanp and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 11.0s. Construction of modules took 0.2s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 86 SDtfs, 88 SDslu, 82 SDs, 0 SdLazy, 112 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital225 mio100 ax108 hnf99 lsp89 ukn78 mio100 lsp36 div100 bol100 ite100 ukn100 eq193 hnf88 smp96 dnf237 smp90 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 98ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 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...