./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd713315a01a83d82c28c42f2ad6c72c3349a374 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:09:39,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:09:39,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:09:39,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:09:39,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:09:39,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:09:39,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:09:39,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:09:39,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:09:39,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:09:39,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:09:39,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:09:39,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:09:39,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:09:39,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:09:39,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:09:39,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:09:39,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:09:39,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:09:39,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:09:39,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:09:39,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:09:39,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:09:39,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:09:39,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:09:39,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:09:39,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:09:39,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:09:39,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:09:39,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:09:39,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:09:39,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:09:39,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:09:39,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:09:39,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:09:39,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:09:39,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:09:39,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:09:39,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:09:39,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:09:39,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:09:39,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:09:39,300 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:09:39,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:09:39,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:09:39,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:09:39,302 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:09:39,302 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:09:39,302 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:09:39,302 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:09:39,302 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:09:39,302 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:09:39,303 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:09:39,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:09:39,303 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:09:39,303 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:09:39,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:09:39,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:09:39,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:09:39,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:09:39,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:09:39,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:09:39,304 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:09:39,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:09:39,304 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:09:39,305 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:09:39,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:09:39,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:09:39,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:09:39,305 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:09:39,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:09:39,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:09:39,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:09:39,306 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:09:39,307 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:09:39,307 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd713315a01a83d82c28c42f2ad6c72c3349a374 [2019-12-07 14:09:39,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:09:39,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:09:39,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:09:39,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:09:39,427 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:09:39,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i [2019-12-07 14:09:39,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/data/c9b0da084/3e21b80ddd3d4358abdeb970ef771bde/FLAG45d12c462 [2019-12-07 14:09:39,908 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:09:39,908 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/sv-benchmarks/c/array-memsafety/cstrcspn-alloca-1.i [2019-12-07 14:09:39,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/data/c9b0da084/3e21b80ddd3d4358abdeb970ef771bde/FLAG45d12c462 [2019-12-07 14:09:39,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/data/c9b0da084/3e21b80ddd3d4358abdeb970ef771bde [2019-12-07 14:09:39,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:09:39,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:09:39,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:09:39,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:09:39,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:09:39,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:09:39" (1/1) ... [2019-12-07 14:09:39,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513e5c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:39, skipping insertion in model container [2019-12-07 14:09:39,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:09:39" (1/1) ... [2019-12-07 14:09:39,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:09:39,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:09:40,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:09:40,187 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:09:40,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:09:40,246 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:09:40,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40 WrapperNode [2019-12-07 14:09:40,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:09:40,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:09:40,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:09:40,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:09:40,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:09:40,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:09:40,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:09:40,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:09:40,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... [2019-12-07 14:09:40,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:09:40,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:09:40,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:09:40,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:09:40,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:09:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:09:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:09:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:09:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:09:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:09:40,522 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:09:40,522 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 14:09:40,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:09:40 BoogieIcfgContainer [2019-12-07 14:09:40,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:09:40,524 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:09:40,524 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:09:40,526 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:09:40,526 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:09:40,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:09:39" (1/3) ... [2019-12-07 14:09:40,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e0484bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:09:40, skipping insertion in model container [2019-12-07 14:09:40,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:09:40,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:09:40" (2/3) ... [2019-12-07 14:09:40,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e0484bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:09:40, skipping insertion in model container [2019-12-07 14:09:40,527 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:09:40,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:09:40" (3/3) ... [2019-12-07 14:09:40,528 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcspn-alloca-1.i [2019-12-07 14:09:40,556 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:09:40,556 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:09:40,556 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:09:40,556 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:09:40,556 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:09:40,556 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:09:40,556 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:09:40,557 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:09:40,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-12-07 14:09:40,579 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-12-07 14:09:40,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:40,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:40,584 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:09:40,584 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:09:40,584 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:09:40,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-12-07 14:09:40,586 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2019-12-07 14:09:40,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:40,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:40,586 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:09:40,586 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:09:40,591 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 14#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 15#L532true assume !(main_~length1~0 < 1); 18#L532-2true assume !(main_~length2~0 < 1); 10#L535-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 25#L541-3true [2019-12-07 14:09:40,591 INFO L796 eck$LassoCheckResult]: Loop: 25#L541-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 22#L541-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 25#L541-3true [2019-12-07 14:09:40,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:40,595 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 14:09:40,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:40,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744384579] [2019-12-07 14:09:40,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:40,687 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:40,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 14:09:40,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:40,688 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82459240] [2019-12-07 14:09:40,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:40,700 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:40,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:40,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 14:09:40,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:40,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84852204] [2019-12-07 14:09:40,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:40,730 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:40,868 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-12-07 14:09:40,927 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:09:40,928 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:09:40,928 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:09:40,928 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:09:40,928 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:09:40,928 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:40,928 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:09:40,928 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:09:40,928 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration1_Lasso [2019-12-07 14:09:40,928 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:09:40,929 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:09:40,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:40,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:40,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:40,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:40,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:40,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,252 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:09:41,255 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:41,259 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 [2019-12-07 14:09:41,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:41,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:41,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:41,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:41,269 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 [2019-12-07 14:09:41,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:41,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:41,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:41,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:41,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:41,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:41,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:41,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:41,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:41,283 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 [2019-12-07 14:09:41,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:41,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:41,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:41,294 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 [2019-12-07 14:09:41,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:41,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:41,301 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:41,307 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 [2019-12-07 14:09:41,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:41,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:41,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:41,319 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 [2019-12-07 14:09:41,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:41,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:41,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:41,330 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 [2019-12-07 14:09:41,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:41,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:41,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:41,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:41,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:41,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:41,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:41,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:41,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:41,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:41,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:41,353 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:09:41,373 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 14:09:41,373 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:41,377 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:09:41,382 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:09:41,382 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:09:41,383 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 14:09:41,398 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 14:09:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:41,442 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:09:41,443 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:41,452 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:09:41,453 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:41,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:09:41,472 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 [2019-12-07 14:09:41,473 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 3 states. [2019-12-07 14:09:41,516 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 3 states. Result 60 states and 87 transitions. Complement of second has 7 states. [2019-12-07 14:09:41,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:09:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:09:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 59 transitions. [2019-12-07 14:09:41,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 14:09:41,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:41,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:09:41,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:41,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 59 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 14:09:41,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:41,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 87 transitions. [2019-12-07 14:09:41,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 14:09:41,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 20 states and 27 transitions. [2019-12-07 14:09:41,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 14:09:41,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-12-07 14:09:41,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2019-12-07 14:09:41,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:09:41,532 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-12-07 14:09:41,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2019-12-07 14:09:41,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 14:09:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 14:09:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-12-07 14:09:41,553 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-12-07 14:09:41,553 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-12-07 14:09:41,553 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:09:41,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2019-12-07 14:09:41,554 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 14:09:41,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:41,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:41,554 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:41,554 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:09:41,555 INFO L794 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 167#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 168#L532 assume !(main_~length1~0 < 1); 169#L532-2 assume !(main_~length2~0 < 1); 164#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 165#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 160#L541-4 main_~i~1 := 0; 161#L547-3 [2019-12-07 14:09:41,555 INFO L796 eck$LassoCheckResult]: Loop: 161#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 163#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 161#L547-3 [2019-12-07 14:09:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:41,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-12-07 14:09:41,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:41,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740449508] [2019-12-07 14:09:41,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:41,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:41,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-12-07 14:09:41,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:41,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874052503] [2019-12-07 14:09:41,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:41,590 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:41,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:41,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-12-07 14:09:41,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:41,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321178462] [2019-12-07 14:09:41,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:41,621 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:41,755 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-12-07 14:09:41,797 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:09:41,797 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:09:41,798 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:09:41,798 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:09:41,798 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:09:41,798 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:41,798 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:09:41,798 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:09:41,798 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration2_Lasso [2019-12-07 14:09:41,798 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:09:41,798 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:09:41,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:41,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:42,081 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:09:42,082 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:42,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:42,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:42,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:42,089 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:42,093 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 [2019-12-07 14:09:42,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:42,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:42,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:42,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,102 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 [2019-12-07 14:09:42,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:42,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:42,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:42,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,109 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 [2019-12-07 14:09:42,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:42,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:42,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,125 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 [2019-12-07 14:09:42,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:42,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:42,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:42,128 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:42,133 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 [2019-12-07 14:09:42,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:42,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:42,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,144 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 [2019-12-07 14:09:42,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:42,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:42,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,155 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 [2019-12-07 14:09:42,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:42,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:42,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:42,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,162 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 [2019-12-07 14:09:42,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:42,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:42,168 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,172 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 [2019-12-07 14:09:42,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:42,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:42,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:42,185 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 [2019-12-07 14:09:42,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:42,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:42,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:42,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:42,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:42,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:42,202 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:09:42,224 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-12-07 14:09:42,224 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:42,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:09:42,229 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 14:09:42,229 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:09:42,229 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2019-12-07 14:09:42,244 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2019-12-07 14:09:42,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:09:42,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:42,271 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 14:09:42,271 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:42,284 WARN L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 14:09:42,284 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:09:42,297 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 [2019-12-07 14:09:42,297 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-12-07 14:09:42,337 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 31 states and 44 transitions. Complement of second has 7 states. [2019-12-07 14:09:42,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:09:42,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:09:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-12-07 14:09:42,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:09:42,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:42,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 14:09:42,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:42,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 7 letters. Loop has 4 letters. [2019-12-07 14:09:42,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:42,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 44 transitions. [2019-12-07 14:09:42,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 14:09:42,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 29 transitions. [2019-12-07 14:09:42,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 14:09:42,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 14:09:42,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 29 transitions. [2019-12-07 14:09:42,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:09:42,341 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-07 14:09:42,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 29 transitions. [2019-12-07 14:09:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 14:09:42,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 14:09:42,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-07 14:09:42,342 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-07 14:09:42,342 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-07 14:09:42,342 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:09:42,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 29 transitions. [2019-12-07 14:09:42,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 14:09:42,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:42,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:42,344 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:42,344 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:42,344 INFO L794 eck$LassoCheckResult]: Stem: 309#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 304#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 305#L532 assume !(main_~length1~0 < 1); 306#L532-2 assume !(main_~length2~0 < 1); 301#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 302#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 296#L541-4 main_~i~1 := 0; 297#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 303#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 293#L519-4 [2019-12-07 14:09:42,344 INFO L796 eck$LassoCheckResult]: Loop: 293#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 298#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 310#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 307#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 308#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6; 294#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 295#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 292#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 293#L519-4 [2019-12-07 14:09:42,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:42,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-12-07 14:09:42,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:42,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273344409] [2019-12-07 14:09:42,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,376 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:42,376 INFO L82 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 1 times [2019-12-07 14:09:42,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:42,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100917268] [2019-12-07 14:09:42,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,391 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:42,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:42,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1903570310, now seen corresponding path program 1 times [2019-12-07 14:09:42,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:42,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58947516] [2019-12-07 14:09:42,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:09:42,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58947516] [2019-12-07 14:09:42,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:42,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 14:09:42,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285539688] [2019-12-07 14:09:42,730 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-12-07 14:09:42,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:42,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 14:09:42,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:09:42,734 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. cyclomatic complexity: 11 Second operand 7 states. [2019-12-07 14:09:42,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:42,795 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-12-07 14:09:42,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:09:42,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2019-12-07 14:09:42,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 14:09:42,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 29 transitions. [2019-12-07 14:09:42,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-12-07 14:09:42,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-12-07 14:09:42,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2019-12-07 14:09:42,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:09:42,797 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-07 14:09:42,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2019-12-07 14:09:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-12-07 14:09:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 14:09:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2019-12-07 14:09:42,799 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-12-07 14:09:42,799 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-12-07 14:09:42,799 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:09:42,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2019-12-07 14:09:42,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 14:09:42,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:42,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:42,800 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:42,800 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:42,800 INFO L794 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 370#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 371#L532 assume !(main_~length1~0 < 1); 372#L532-2 assume !(main_~length2~0 < 1); 367#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 368#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 377#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 378#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 362#L541-4 main_~i~1 := 0; 363#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 369#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 361#L519-4 [2019-12-07 14:09:42,800 INFO L796 eck$LassoCheckResult]: Loop: 361#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 364#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 376#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 373#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 374#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6; 358#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 359#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 360#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 361#L519-4 [2019-12-07 14:09:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:42,800 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-12-07 14:09:42,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:42,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652459526] [2019-12-07 14:09:42,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:42,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:42,821 INFO L82 PathProgramCache]: Analyzing trace with hash -904885455, now seen corresponding path program 2 times [2019-12-07 14:09:42,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:42,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274522299] [2019-12-07 14:09:42,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:42,830 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:42,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:42,831 INFO L82 PathProgramCache]: Analyzing trace with hash -164170776, now seen corresponding path program 1 times [2019-12-07 14:09:42,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:42,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042469305] [2019-12-07 14:09:42,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:09:42,919 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042469305] [2019-12-07 14:09:42,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:09:42,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 14:09:42,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77367945] [2019-12-07 14:09:43,124 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-12-07 14:09:43,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:43,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 14:09:43,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:09:43,125 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand 9 states. [2019-12-07 14:09:43,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:43,218 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2019-12-07 14:09:43,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 14:09:43,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 41 transitions. [2019-12-07 14:09:43,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 14:09:43,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 41 transitions. [2019-12-07 14:09:43,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-12-07 14:09:43,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-12-07 14:09:43,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2019-12-07 14:09:43,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:09:43,221 INFO L688 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2019-12-07 14:09:43,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2019-12-07 14:09:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2019-12-07 14:09:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 14:09:43,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2019-12-07 14:09:43,224 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-12-07 14:09:43,224 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-12-07 14:09:43,224 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 14:09:43,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2019-12-07 14:09:43,225 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 14:09:43,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:43,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:43,225 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:43,226 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:43,226 INFO L794 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 450#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 451#L532 assume !(main_~length1~0 < 1); 452#L532-2 assume !(main_~length2~0 < 1); 446#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 447#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 458#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 459#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 441#L541-4 main_~i~1 := 0; 442#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 448#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 464#L519-4 [2019-12-07 14:09:43,226 INFO L796 eck$LassoCheckResult]: Loop: 464#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 463#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 460#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 453#L522-1 assume !cstrcspn_#t~short7; 454#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6; 467#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 466#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 465#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 464#L519-4 [2019-12-07 14:09:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:43,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2019-12-07 14:09:43,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:43,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473791520] [2019-12-07 14:09:43,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:43,245 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:43,245 INFO L82 PathProgramCache]: Analyzing trace with hash -903038413, now seen corresponding path program 1 times [2019-12-07 14:09:43,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:43,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577277570] [2019-12-07 14:09:43,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:43,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:43,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:43,254 INFO L82 PathProgramCache]: Analyzing trace with hash -162323734, now seen corresponding path program 1 times [2019-12-07 14:09:43,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:43,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431683081] [2019-12-07 14:09:43,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:43,278 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:43,657 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 107 [2019-12-07 14:09:43,781 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-12-07 14:09:43,783 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:09:43,783 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:09:43,783 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:09:43,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:09:43,783 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:09:43,783 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:43,783 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:09:43,784 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:09:43,784 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration5_Lasso [2019-12-07 14:09:43,784 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:09:43,784 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:09:43,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:43,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,037 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-12-07 14:09:44,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:44,272 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-12-07 14:09:44,504 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:09:44,504 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:44,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,514 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 [2019-12-07 14:09:44,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,522 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 [2019-12-07 14:09:44,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:44,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:44,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,531 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 [2019-12-07 14:09:44,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,538 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 [2019-12-07 14:09:44,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,544 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 [2019-12-07 14:09:44,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:44,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,556 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 [2019-12-07 14:09:44,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,563 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 [2019-12-07 14:09:44,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,574 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 [2019-12-07 14:09:44,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,581 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 [2019-12-07 14:09:44,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:44,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:44,585 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,589 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 [2019-12-07 14:09:44,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,595 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 [2019-12-07 14:09:44,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,601 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 [2019-12-07 14:09:44,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,608 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 [2019-12-07 14:09:44,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,610 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:44,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:44,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,616 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 [2019-12-07 14:09:44,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/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 [2019-12-07 14:09:44,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:44,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:44,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,629 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 [2019-12-07 14:09:44,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:44,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,630 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 14:09:44,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,631 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 14:09:44,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:44,634 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:44,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:44,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:44,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,646 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 [2019-12-07 14:09:44,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:44,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:44,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:44,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:44,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:44,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:44,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:44,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:44,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:44,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:09:44,716 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2019-12-07 14:09:44,716 INFO L444 ModelExtractionUtils]: 39 out of 64 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:44,718 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:09:44,720 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:09:44,720 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:09:44,720 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_3, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_3 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [] [2019-12-07 14:09:44,754 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2019-12-07 14:09:44,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:09:44,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:44,780 INFO L264 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:09:44,781 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:44,794 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:09:44,794 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:09:44,806 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 [2019-12-07 14:09:44,806 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 14:09:44,834 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 48 states and 59 transitions. Complement of second has 5 states. [2019-12-07 14:09:44,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:09:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:09:44,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-12-07 14:09:44,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2019-12-07 14:09:44,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:44,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 19 letters. Loop has 8 letters. [2019-12-07 14:09:44,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:44,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 11 letters. Loop has 16 letters. [2019-12-07 14:09:44,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:44,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 59 transitions. [2019-12-07 14:09:44,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:09:44,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 27 states and 35 transitions. [2019-12-07 14:09:44,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 14:09:44,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 14:09:44,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2019-12-07 14:09:44,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:09:44,837 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-12-07 14:09:44,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2019-12-07 14:09:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 14:09:44,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 14:09:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-12-07 14:09:44,839 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-12-07 14:09:44,839 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-12-07 14:09:44,839 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 14:09:44,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2019-12-07 14:09:44,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:09:44,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:44,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:44,840 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:44,840 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:09:44,840 INFO L794 eck$LassoCheckResult]: Stem: 675#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 667#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 668#L532 assume !(main_~length1~0 < 1); 669#L532-2 assume !(main_~length2~0 < 1); 664#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 665#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 678#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 679#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 657#L541-4 main_~i~1 := 0; 658#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 662#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 663#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 666#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 659#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 661#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 676#L522-5 [2019-12-07 14:09:44,840 INFO L796 eck$LassoCheckResult]: Loop: 676#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 670#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 671#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 676#L522-5 [2019-12-07 14:09:44,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:44,840 INFO L82 PathProgramCache]: Analyzing trace with hash 2055034687, now seen corresponding path program 1 times [2019-12-07 14:09:44,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:44,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249515335] [2019-12-07 14:09:44,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:44,857 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:44,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:44,857 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 1 times [2019-12-07 14:09:44,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:44,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750741519] [2019-12-07 14:09:44,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:44,862 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:44,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:44,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1074579938, now seen corresponding path program 1 times [2019-12-07 14:09:44,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:44,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825430632] [2019-12-07 14:09:44,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:44,886 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:45,553 WARN L192 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 129 [2019-12-07 14:09:45,742 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-12-07 14:09:45,744 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:09:45,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:09:45,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:09:45,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:09:45,745 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:09:45,745 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:45,745 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:09:45,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:09:45,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration6_Lasso [2019-12-07 14:09:45,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:09:45,745 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:09:45,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:45,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,098 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 92 [2019-12-07 14:09:46,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:09:46,333 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-12-07 14:09:46,886 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-12-07 14:09:47,027 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:09:47,027 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,030 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 [2019-12-07 14:09:47,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,037 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 [2019-12-07 14:09:47,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,040 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,046 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 [2019-12-07 14:09:47,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:47,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:47,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,056 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 [2019-12-07 14:09:47,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:47,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,067 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,071 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 [2019-12-07 14:09:47,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,076 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 [2019-12-07 14:09:47,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:47,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:47,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:47,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,090 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 [2019-12-07 14:09:47,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,096 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 [2019-12-07 14:09:47,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,103 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 [2019-12-07 14:09:47,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:47,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:47,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:09:47,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,117 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 [2019-12-07 14:09:47,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:09:47,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:09:47,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:09:47,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,125 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 [2019-12-07 14:09:47,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:47,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:47,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,133 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 [2019-12-07 14:09:47,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:47,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:47,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,141 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 [2019-12-07 14:09:47,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:09:47,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:09:47,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:09:47,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:09:47,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:09:47,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:09:47,166 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:09:47,206 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2019-12-07 14:09:47,206 INFO L444 ModelExtractionUtils]: 20 out of 55 variables were initially zero. Simplification set additionally 32 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:09:47,208 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:09:47,210 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:09:47,210 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:09:47,210 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4) = -1*ULTIMATE.start_cstrcspn_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4 Supporting invariants [] [2019-12-07 14:09:47,285 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2019-12-07 14:09:47,286 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:09:47,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:47,316 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:09:47,317 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:47,339 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:09:47,340 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:47,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:09:47,352 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:09:47,352 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand 5 states. [2019-12-07 14:09:47,398 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand 5 states. Result 54 states and 67 transitions. Complement of second has 7 states. [2019-12-07 14:09:47,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:09:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:09:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2019-12-07 14:09:47,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 3 letters. [2019-12-07 14:09:47,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:47,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 18 letters. Loop has 3 letters. [2019-12-07 14:09:47,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:47,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 15 letters. Loop has 6 letters. [2019-12-07 14:09:47,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:09:47,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions. [2019-12-07 14:09:47,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:09:47,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 40 states and 50 transitions. [2019-12-07 14:09:47,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 14:09:47,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 14:09:47,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2019-12-07 14:09:47,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:09:47,402 INFO L688 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2019-12-07 14:09:47,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2019-12-07 14:09:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2019-12-07 14:09:47,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 14:09:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2019-12-07 14:09:47,403 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2019-12-07 14:09:47,404 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2019-12-07 14:09:47,404 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 14:09:47,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2019-12-07 14:09:47,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:09:47,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:47,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:47,405 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:47,405 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:09:47,405 INFO L794 eck$LassoCheckResult]: Stem: 947#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 940#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 941#L532 assume !(main_~length1~0 < 1); 942#L532-2 assume !(main_~length2~0 < 1); 937#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 938#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 950#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 951#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 929#L541-4 main_~i~1 := 0; 930#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 935#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 936#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 939#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 931#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 932#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 949#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 945#L522-1 assume !cstrcspn_#t~short7; 946#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6; 925#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 926#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 927#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 928#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 934#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 948#L522-5 [2019-12-07 14:09:47,405 INFO L796 eck$LassoCheckResult]: Loop: 948#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 943#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 944#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 948#L522-5 [2019-12-07 14:09:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:47,405 INFO L82 PathProgramCache]: Analyzing trace with hash -777149455, now seen corresponding path program 1 times [2019-12-07 14:09:47,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:47,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145608913] [2019-12-07 14:09:47,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:09:47,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145608913] [2019-12-07 14:09:47,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197703099] [2019-12-07 14:09:47,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:09:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:47,650 INFO L264 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 57 conjunts are in the unsatisfiable core [2019-12-07 14:09:47,651 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:47,723 INFO L343 Elim1Store]: treesize reduction 37, result has 19.6 percent of original size [2019-12-07 14:09:47,723 INFO L377 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 34 treesize of output 20 [2019-12-07 14:09:47,723 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:09:47,731 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:09:47,732 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 14:09:47,732 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:32 [2019-12-07 14:09:47,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:09:47,975 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 14:09:47,976 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 14:09:48,008 INFO L343 Elim1Store]: treesize reduction 14, result has 78.8 percent of original size [2019-12-07 14:09:48,008 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 41 treesize of output 68 [2019-12-07 14:09:48,009 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:09:48,010 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:09:48,020 INFO L614 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2019-12-07 14:09:48,020 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 14:09:48,020 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:3 [2019-12-07 14:09:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:09:48,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:09:48,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 19 [2019-12-07 14:09:48,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447870471] [2019-12-07 14:09:48,037 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 14:09:48,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:48,037 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 2 times [2019-12-07 14:09:48,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:48,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795652383] [2019-12-07 14:09:48,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:48,046 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:48,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:09:48,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-12-07 14:09:48,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2019-12-07 14:09:48,155 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. cyclomatic complexity: 14 Second operand 20 states. [2019-12-07 14:09:48,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:09:48,898 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2019-12-07 14:09:48,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-07 14:09:48,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 81 transitions. [2019-12-07 14:09:48,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:09:48,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 35 states and 44 transitions. [2019-12-07 14:09:48,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 14:09:48,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 14:09:48,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2019-12-07 14:09:48,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:09:48,900 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2019-12-07 14:09:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2019-12-07 14:09:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-12-07 14:09:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 14:09:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2019-12-07 14:09:48,902 INFO L711 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2019-12-07 14:09:48,902 INFO L591 BuchiCegarLoop]: Abstraction has 34 states and 43 transitions. [2019-12-07 14:09:48,902 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 14:09:48,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 43 transitions. [2019-12-07 14:09:48,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:09:48,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:09:48,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:09:48,903 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:09:48,903 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:09:48,903 INFO L794 eck$LassoCheckResult]: Stem: 1162#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1155#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1156#L532 assume !(main_~length1~0 < 1); 1157#L532-2 assume !(main_~length2~0 < 1); 1152#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 1153#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1167#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1168#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1170#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1172#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1144#L541-4 main_~i~1 := 0; 1145#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1150#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1151#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1154#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 1146#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1147#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1165#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1160#L522-1 assume !cstrcspn_#t~short7; 1161#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6; 1140#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 1141#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 1142#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 1143#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1149#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1163#L522-5 [2019-12-07 14:09:48,903 INFO L796 eck$LassoCheckResult]: Loop: 1163#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1158#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 1159#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 1163#L522-5 [2019-12-07 14:09:48,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:48,903 INFO L82 PathProgramCache]: Analyzing trace with hash 409245907, now seen corresponding path program 2 times [2019-12-07 14:09:48,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:48,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865173947] [2019-12-07 14:09:48,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:48,931 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:48,931 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 3 times [2019-12-07 14:09:48,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:48,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065959613] [2019-12-07 14:09:48,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:09:48,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:09:48,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:09:48,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1567281202, now seen corresponding path program 1 times [2019-12-07 14:09:48,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:09:48,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255907399] [2019-12-07 14:09:48,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:09:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 14:09:48,987 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255907399] [2019-12-07 14:09:48,987 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219416301] [2019-12-07 14:09:48,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:09:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:09:49,022 INFO L264 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 23 conjunts are in the unsatisfiable core [2019-12-07 14:09:49,023 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:09:49,034 INFO L343 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2019-12-07 14:09:49,035 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-12-07 14:09:49,035 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 14:09:49,038 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 14:09:49,039 INFO L534 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-12-07 14:09:49,039 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:36, output treesize:21 [2019-12-07 14:10:27,343 WARN L192 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-12-07 14:10:52,753 WARN L192 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 15 [2019-12-07 14:11:09,276 WARN L192 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 15 [2019-12-07 14:11:09,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:11:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 14:11:09,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 14:11:09,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-12-07 14:11:09,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818149008] [2019-12-07 14:11:09,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:11:09,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 14:11:09,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=115, Unknown=8, NotChecked=0, Total=156 [2019-12-07 14:11:09,392 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. cyclomatic complexity: 14 Second operand 13 states. [2019-12-07 14:11:11,963 WARN L192 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2019-12-07 14:11:14,700 WARN L192 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2019-12-07 14:11:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:11:14,740 INFO L93 Difference]: Finished difference Result 63 states and 77 transitions. [2019-12-07 14:11:14,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:11:14,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 77 transitions. [2019-12-07 14:11:14,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:11:14,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 52 states and 64 transitions. [2019-12-07 14:11:14,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-12-07 14:11:14,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-12-07 14:11:14,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 64 transitions. [2019-12-07 14:11:14,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 14:11:14,741 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 64 transitions. [2019-12-07 14:11:14,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 64 transitions. [2019-12-07 14:11:14,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2019-12-07 14:11:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 14:11:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2019-12-07 14:11:14,743 INFO L711 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2019-12-07 14:11:14,743 INFO L591 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2019-12-07 14:11:14,743 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 14:11:14,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2019-12-07 14:11:14,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 14:11:14,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:11:14,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:11:14,745 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:11:14,745 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 14:11:14,745 INFO L794 eck$LassoCheckResult]: Stem: 1367#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1360#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1361#L532 assume !(main_~length1~0 < 1); 1362#L532-2 assume !(main_~length2~0 < 1); 1357#L535-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 1358#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1372#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1373#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 1375#L541-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 1376#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1349#L541-4 main_~i~1 := 0; 1350#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 1355#L547-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 1356#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1359#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 1351#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1352#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1381#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1365#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 1366#L522-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6; 1345#L522-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 1346#L524 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 1347#L519-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 1348#L519-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 1354#L519-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 1368#L522-5 [2019-12-07 14:11:14,745 INFO L796 eck$LassoCheckResult]: Loop: 1368#L522-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 1363#L522-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 1364#L522-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~mem6;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 1368#L522-5 [2019-12-07 14:11:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:11:14,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1365761455, now seen corresponding path program 1 times [2019-12-07 14:11:14,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:11:14,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765022306] [2019-12-07 14:11:14,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:11:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:11:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:11:14,768 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:11:14,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:11:14,769 INFO L82 PathProgramCache]: Analyzing trace with hash 86496, now seen corresponding path program 4 times [2019-12-07 14:11:14,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:11:14,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535329491] [2019-12-07 14:11:14,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:11:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:11:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:11:14,775 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:11:14,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:11:14,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1174254192, now seen corresponding path program 1 times [2019-12-07 14:11:14,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:11:14,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51780442] [2019-12-07 14:11:14,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:11:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:11:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:11:14,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:11:15,828 WARN L192 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 179 [2019-12-07 14:11:17,634 WARN L192 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 137 DAG size of output: 137 [2019-12-07 14:11:17,637 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:11:17,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:11:17,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:11:17,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:11:17,637 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:11:17,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:17,637 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:11:17,637 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:11:17,637 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-1.i_Iteration9_Lasso [2019-12-07 14:11:17,637 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:11:17,637 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:11:17,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:17,900 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-12-07 14:11:18,585 WARN L192 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 109 [2019-12-07 14:11:18,712 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-12-07 14:11:18,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:11:18,907 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-12-07 14:11:19,832 WARN L192 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2019-12-07 14:11:19,998 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-12-07 14:11:20,092 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:11:20,092 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,095 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 [2019-12-07 14:11:20,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,100 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 [2019-12-07 14:11:20,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,107 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 [2019-12-07 14:11:20,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,113 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 [2019-12-07 14:11:20,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:11:20,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:11:20,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,121 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 [2019-12-07 14:11:20,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:11:20,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:11:20,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,130 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 [2019-12-07 14:11:20,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:11:20,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:11:20,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,138 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 [2019-12-07 14:11:20,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,144 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 [2019-12-07 14:11:20,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:11:20,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,157 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 [2019-12-07 14:11:20,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,163 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 [2019-12-07 14:11:20,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,169 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 [2019-12-07 14:11:20,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:11:20,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:11:20,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,193 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 [2019-12-07 14:11:20,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:11:20,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:11:20,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:11:20,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,199 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 [2019-12-07 14:11:20,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:11:20,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:11:20,215 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,219 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 [2019-12-07 14:11:20,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:11:20,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:11:20,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,227 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 [2019-12-07 14:11:20,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:11:20,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:11:20,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,235 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 [2019-12-07 14:11:20,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,237 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2019-12-07 14:11:20,237 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2019-12-07 14:11:20,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,319 INFO L401 nArgumentSynthesizer]: We have 180 Motzkin's Theorem applications. [2019-12-07 14:11:20,319 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-12-07 14:11:20,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,565 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 [2019-12-07 14:11:20,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:11:20,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:11:20,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:11:20,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:11:20,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:11:20,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:11:20,586 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:11:20,605 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 14:11:20,605 INFO L444 ModelExtractionUtils]: 16 out of 43 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9119555-738a-40c2-b90e-b6af30d8a74e/bin/uautomizer/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:11:20,608 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:11:20,609 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:11:20,610 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:11:20,610 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_5) = -1*ULTIMATE.start_cstrcspn_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_5 Supporting invariants [] [2019-12-07 14:11:20,746 INFO L297 tatePredicateManager]: 34 out of 35 supporting invariants were superfluous and have been removed [2019-12-07 14:11:20,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:11:20,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:11:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:11:20,779 INFO L264 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:11:20,780 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:11:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:11:20,800 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:11:20,800 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:11:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:11:20,810 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:11:20,810 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-12-07 14:11:20,852 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 56 states and 70 transitions. Complement of second has 7 states. [2019-12-07 14:11:20,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:11:20,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:11:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2019-12-07 14:11:20,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 25 letters. Loop has 3 letters. [2019-12-07 14:11:20,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:11:20,853 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 14:11:20,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:11:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:11:20,883 INFO L264 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:11:20,884 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:11:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:11:20,903 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:11:20,904 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:11:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:11:20,915 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:11:20,915 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-12-07 14:11:20,957 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 56 states and 70 transitions. Complement of second has 7 states. [2019-12-07 14:11:20,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:11:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:11:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2019-12-07 14:11:20,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 25 letters. Loop has 3 letters. [2019-12-07 14:11:20,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:11:20,958 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 14:11:20,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:11:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:11:20,990 INFO L264 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:11:20,991 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:11:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:11:21,014 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 14:11:21,015 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:11:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:11:21,025 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 14:11:21,025 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-12-07 14:11:21,068 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 55 states and 72 transitions. Complement of second has 6 states. [2019-12-07 14:11:21,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:11:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 14:11:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2019-12-07 14:11:21,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 25 letters. Loop has 3 letters. [2019-12-07 14:11:21,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:11:21,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 28 letters. Loop has 3 letters. [2019-12-07 14:11:21,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:11:21,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 25 letters. Loop has 6 letters. [2019-12-07 14:11:21,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:11:21,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 72 transitions. [2019-12-07 14:11:21,070 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:11:21,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2019-12-07 14:11:21,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:11:21,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:11:21,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:11:21,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:11:21,070 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:11:21,070 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:11:21,070 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:11:21,070 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 14:11:21,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:11:21,071 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:11:21,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:11:21,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:11:21 BoogieIcfgContainer [2019-12-07 14:11:21,075 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:11:21,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:11:21,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:11:21,075 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:11:21,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:09:40" (3/4) ... [2019-12-07 14:11:21,077 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:11:21,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:11:21,078 INFO L168 Benchmark]: Toolchain (without parser) took 101147.80 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 239.6 MB). Free memory was 940.9 MB in the beginning and 981.9 MB in the end (delta: -41.0 MB). Peak memory consumption was 198.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:11:21,078 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:11:21,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:11:21,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:11:21,079 INFO L168 Benchmark]: Boogie Preprocessor took 19.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:11:21,079 INFO L168 Benchmark]: RCFGBuilder took 224.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:11:21,079 INFO L168 Benchmark]: BuchiAutomizer took 100551.13 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 141.0 MB). Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 71.7 MB). Peak memory consumption was 212.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:11:21,080 INFO L168 Benchmark]: Witness Printer took 2.69 ms. Allocated memory is still 1.3 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:11:21,081 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 224.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 100551.13 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 141.0 MB). Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 71.7 MB). Peak memory consumption was 212.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.69 ms. Allocated memory is still 1.3 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 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 - 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 9 terminating modules (4 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * sc1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. One nondeterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 100.5s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 93.4s. Construction of modules took 0.3s. Büchi inclusion checks took 6.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 27 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 38 states and ocurred in iteration 8. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 206 SDtfs, 515 SDslu, 511 SDs, 0 SdLazy, 500 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU1 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital368 mio100 ax108 hnf98 lsp82 ukn72 mio100 lsp46 div108 bol100 ite100 ukn100 eq175 hnf86 smp92 dnf519 smp71 tf100 neg98 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 326ms VariablesStem: 9 VariablesLoop: 6 DisjunctsStem: 8 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 180 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...