./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcd11173df80f9a00fde2714abfd2a4ff8d40757 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 13:27:42,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:27:42,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:27:42,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:27:42,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:27:42,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:27:42,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:27:42,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:27:42,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:27:42,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:27:42,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:27:42,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:27:42,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:27:42,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:27:42,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:27:42,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:27:42,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:27:42,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:27:42,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:27:42,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:27:42,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:27:42,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:27:42,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:27:42,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:27:42,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:27:42,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:27:42,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:27:42,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:27:42,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:27:42,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:27:42,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:27:42,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:27:42,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:27:42,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:27:42,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:27:42,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:27:42,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:27:42,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:27:42,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:27:42,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:27:42,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:27:42,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 13:27:42,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:27:42,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:27:42,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:27:42,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:27:42,265 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:27:42,265 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 13:27:42,265 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 13:27:42,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 13:27:42,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 13:27:42,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 13:27:42,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:27:42,267 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 13:27:42,267 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:27:42,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 13:27:42,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:27:42,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:27:42,267 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 13:27:42,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:27:42,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:27:42,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:27:42,268 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 13:27:42,268 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 13:27:42,268 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_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd11173df80f9a00fde2714abfd2a4ff8d40757 [2019-12-07 13:27:42,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:27:42,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:27:42,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:27:42,376 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:27:42,377 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:27:42,377 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i [2019-12-07 13:27:42,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/data/c60bc1d12/7231f8f6088a4527bd4e570bde503e54/FLAG70b6b7dac [2019-12-07 13:27:42,938 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:27:42,938 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i [2019-12-07 13:27:42,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/data/c60bc1d12/7231f8f6088a4527bd4e570bde503e54/FLAG70b6b7dac [2019-12-07 13:27:43,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/data/c60bc1d12/7231f8f6088a4527bd4e570bde503e54 [2019-12-07 13:27:43,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:27:43,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:27:43,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:27:43,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:27:43,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:27:43,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7273d947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43, skipping insertion in model container [2019-12-07 13:27:43,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:27:43,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:27:43,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:27:43,683 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:27:43,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:27:43,757 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:27:43,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43 WrapperNode [2019-12-07 13:27:43,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:27:43,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:27:43,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:27:43,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:27:43,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:27:43,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:27:43,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:27:43,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:27:43,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... [2019-12-07 13:27:43,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:27:43,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:27:43,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:27:43,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:27:43,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:27:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:27:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:27:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:27:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:27:43,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:27:44,004 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:27:44,004 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 13:27:44,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:27:44 BoogieIcfgContainer [2019-12-07 13:27:44,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:27:44,006 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 13:27:44,006 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 13:27:44,008 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 13:27:44,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:27:44,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:27:43" (1/3) ... [2019-12-07 13:27:44,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fcdd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:27:44, skipping insertion in model container [2019-12-07 13:27:44,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:27:44,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:27:43" (2/3) ... [2019-12-07 13:27:44,010 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fcdd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:27:44, skipping insertion in model container [2019-12-07 13:27:44,010 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 13:27:44,010 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:27:44" (3/3) ... [2019-12-07 13:27:44,011 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcspn_diffterm_alloca.i [2019-12-07 13:27:44,038 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 13:27:44,038 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 13:27:44,039 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 13:27:44,039 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:27:44,039 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:27:44,039 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 13:27:44,039 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:27:44,039 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 13:27:44,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 13:27:44,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 13:27:44,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:27:44,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:27:44,067 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 13:27:44,067 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 13:27:44,067 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 13:27:44,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 13:27:44,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 13:27:44,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:27:44,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:27:44,069 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 13:27:44,069 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 13:27:44,074 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 11#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 9#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, 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~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, 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; 6#L369-4true [2019-12-07 13:27:44,074 INFO L796 eck$LassoCheckResult]: Loop: 6#L369-4true call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 18#L369-1true assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 20#L372-5true assume !true; 4#L372-6true call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 8#L374true assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 5#L369-3true cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 6#L369-4true [2019-12-07 13:27:44,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:44,078 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 13:27:44,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:44,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357898540] [2019-12-07 13:27:44,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,187 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:44,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2019-12-07 13:27:44,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:44,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358445192] [2019-12-07 13:27:44,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:44,209 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 13:27:44,210 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358445192] [2019-12-07 13:27:44,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:27:44,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:27:44,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168720613] [2019-12-07 13:27:44,214 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 13:27:44,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:27:44,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:27:44,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:27:44,225 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 13:27:44,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:27:44,230 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-12-07 13:27:44,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:27:44,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-12-07 13:27:44,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 13:27:44,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2019-12-07 13:27:44,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 13:27:44,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-12-07 13:27:44,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-12-07 13:27:44,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:27:44,236 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 13:27:44,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-12-07 13:27:44,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 13:27:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 13:27:44,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-12-07 13:27:44,254 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 13:27:44,254 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-12-07 13:27:44,254 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 13:27:44,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-12-07 13:27:44,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 13:27:44,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:27:44,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:27:44,255 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 13:27:44,255 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:27:44,255 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 50#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 51#L382 assume !(main_~length1~0 < 1); 52#L382-2 assume !(main_~length2~0 < 1); 49#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, 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~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, 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; 47#L369-4 [2019-12-07 13:27:44,256 INFO L796 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 48#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 56#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 53#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 54#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 44#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 45#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 46#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 47#L369-4 [2019-12-07 13:27:44,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:44,256 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2019-12-07 13:27:44,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:44,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180169840] [2019-12-07 13:27:44,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,282 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:44,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:44,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2019-12-07 13:27:44,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:44,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397020563] [2019-12-07 13:27:44,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,306 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:44,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:44,306 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2019-12-07 13:27:44,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:44,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529366308] [2019-12-07 13:27:44,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:44,355 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:44,476 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-12-07 13:27:44,630 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-12-07 13:27:44,837 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-12-07 13:27:44,939 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:27:44,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:27:44,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:27:44,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:27:44,940 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 13:27:44,940 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:27:44,940 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:27:44,940 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:27:44,940 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_diffterm_alloca.i_Iteration2_Lasso [2019-12-07 13:27:44,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:27:44,941 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:27:44,958 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 13:27:44,962 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 13:27:44,965 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 13:27:44,967 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 13:27:44,969 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 13:27:44,970 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 13:27:44,972 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 13:27:44,974 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 13:27:44,975 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 13:27:44,977 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 13:27:44,978 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 13:27:44,980 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 13:27:44,981 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 13:27:44,982 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 13:27:45,204 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-12-07 13:27:45,321 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-12-07 13:27:45,322 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 13:27:45,324 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 13:27:45,325 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 13:27:45,326 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 13:27:45,758 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-12-07 13:27:45,810 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:27:45,813 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,817 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 13:27:45,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,828 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 13:27:45,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:27:45,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:27:45,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:27:45,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,848 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 13:27:45,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:27:45,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:27:45,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,859 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 13:27:45,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,867 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 13:27:45,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:27:45,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,883 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 13:27:45,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,887 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,891 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 13:27:45,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,895 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,899 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 13:27:45,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,907 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 13:27:45,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,915 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 13:27:45,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,923 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 13:27:45,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:45,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:45,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:45,926 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,933 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 13:27:45,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:45,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:45,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:45,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:45,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:27:45,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:27:45,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 13:27:45,987 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 13:27:45,987 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:45,992 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 13:27:45,995 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 13:27:45,995 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 13:27:45,996 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [1*ULTIMATE.start_main_~length1~0 - 1*v_rep(select #length ULTIMATE.start_cstrcspn_~sc1~0.base)_1 >= 0] [2019-12-07 13:27:46,037 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2019-12-07 13:27:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:46,091 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 13:27:46,092 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:27:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:46,105 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:27:46,105 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:27:46,118 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 13:27:46,120 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 13:27:46,120 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 13:27:46,168 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2019-12-07 13:27:46,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 13:27:46,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 13:27:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2019-12-07 13:27:46,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2019-12-07 13:27:46,170 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:27:46,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2019-12-07 13:27:46,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:27:46,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2019-12-07 13:27:46,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:27:46,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2019-12-07 13:27:46,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:27:46,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2019-12-07 13:27:46,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-12-07 13:27:46,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-12-07 13:27:46,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-12-07 13:27:46,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 13:27:46,173 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 13:27:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-12-07 13:27:46,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 13:27:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 13:27:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-12-07 13:27:46,175 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 13:27:46,175 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 13:27:46,175 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 13:27:46,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-12-07 13:27:46,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:27:46,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:27:46,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:27:46,176 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:27:46,176 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 13:27:46,176 INFO L794 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 190#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 191#L382 assume !(main_~length1~0 < 1); 192#L382-2 assume !(main_~length2~0 < 1); 189#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, 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~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, 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; 186#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 188#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 198#L372-5 [2019-12-07 13:27:46,176 INFO L796 eck$LassoCheckResult]: Loop: 198#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 193#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 194#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, 1 + cstrcspn_#t~post211.offset;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 198#L372-5 [2019-12-07 13:27:46,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:46,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2019-12-07 13:27:46,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:46,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741598391] [2019-12-07 13:27:46,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:46,202 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:46,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:46,202 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2019-12-07 13:27:46,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:46,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552095329] [2019-12-07 13:27:46,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:46,210 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:46,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:46,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2019-12-07 13:27:46,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:46,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359668876] [2019-12-07 13:27:46,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:46,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:46,621 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 101 [2019-12-07 13:27:46,717 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:27:46,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:27:46,717 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:27:46,717 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:27:46,717 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 13:27:46,717 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:27:46,717 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:27:46,717 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:27:46,717 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_diffterm_alloca.i_Iteration3_Lasso [2019-12-07 13:27:46,717 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:27:46,718 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:27:46,721 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 13:27:46,722 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 13:27:46,723 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 13:27:46,725 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 13:27:46,726 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 13:27:46,727 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 13:27:46,728 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 13:27:46,730 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 13:27:46,731 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 13:27:46,731 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 13:27:46,972 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-12-07 13:27:47,054 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 13:27:47,055 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 13:27:47,056 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 13:27:47,057 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 13:27:47,059 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 13:27:47,060 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 13:27:47,061 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 13:27:47,062 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 13:27:47,063 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 13:27:47,543 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2019-12-07 13:27:47,557 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:27:47,557 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,559 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 13:27:47,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:47,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:47,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:47,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,568 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 13:27:47,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:27:47,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:27:47,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:27:47,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:47,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:47,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:47,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,583 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 13:27:47,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:47,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:47,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:47,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,590 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 13:27:47,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:47,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:47,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:47,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,597 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 13:27:47,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,599 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:27:47,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:27:47,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,606 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 13:27:47,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:27:47,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:27:47,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:27:47,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:47,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:47,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:47,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,623 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 13:27:47,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:27:47,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:27:47,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:27:47,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,629 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 13:27:47,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:27:47,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:27:47,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:27:47,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:27:47,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:27:47,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:27:47,652 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 13:27:47,678 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 13:27:47,678 INFO L444 ModelExtractionUtils]: 11 out of 52 variables were initially zero. Simplification set additionally 38 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:27:47,680 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 13:27:47,682 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 13:27:47,682 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 13:27:47,682 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2019-12-07 13:27:47,726 INFO L297 tatePredicateManager]: 16 out of 17 supporting invariants were superfluous and have been removed [2019-12-07 13:27:47,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 13:27:47,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:47,754 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 13:27:47,755 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:27:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:47,767 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:27:47,768 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:27:47,777 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 13:27:47,777 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 13:27:47,778 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-12-07 13:27:47,807 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 43 states and 57 transitions. Complement of second has 6 states. [2019-12-07 13:27:47,808 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 13:27:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 13:27:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-12-07 13:27:47,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2019-12-07 13:27:47,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:27:47,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2019-12-07 13:27:47,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:27:47,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2019-12-07 13:27:47,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:27:47,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2019-12-07 13:27:47,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:27:47,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2019-12-07 13:27:47,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 13:27:47,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-12-07 13:27:47,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2019-12-07 13:27:47,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 13:27:47,811 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-12-07 13:27:47,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2019-12-07 13:27:47,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2019-12-07 13:27:47,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 13:27:47,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-12-07 13:27:47,813 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-12-07 13:27:47,813 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-12-07 13:27:47,813 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 13:27:47,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2019-12-07 13:27:47,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:27:47,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:27:47,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:27:47,814 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:27:47,814 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 13:27:47,815 INFO L794 eck$LassoCheckResult]: Stem: 386#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 379#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 380#L382 assume !(main_~length1~0 < 1); 381#L382-2 assume !(main_~length2~0 < 1); 378#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, 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~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, 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; 374#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 375#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 388#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 384#L372-1 assume !cstrcspn_#t~short210; 385#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 370#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 371#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 372#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 373#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 377#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 387#L372-5 [2019-12-07 13:27:47,815 INFO L796 eck$LassoCheckResult]: Loop: 387#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 382#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 383#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, 1 + cstrcspn_#t~post211.offset;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 387#L372-5 [2019-12-07 13:27:47,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:47,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2019-12-07 13:27:47,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:47,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558516099] [2019-12-07 13:27:47,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:47,841 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:47,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:47,842 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2019-12-07 13:27:47,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:47,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109677181] [2019-12-07 13:27:47,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:27:47,851 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:27:47,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:27:47,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2019-12-07 13:27:47,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:27:47,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023890823] [2019-12-07 13:27:47,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:27:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:27:47,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023890823] [2019-12-07 13:27:47,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113691481] [2019-12-07 13:27:47,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:27:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:27:47,955 INFO L264 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjunts are in the unsatisfiable core [2019-12-07 13:27:47,956 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:27:47,986 INFO L343 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2019-12-07 13:27:47,986 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 13:27:47,986 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:27:47,990 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:27:47,990 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 13:27:47,991 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:36, output treesize:21 [2019-12-07 13:28:00,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:28:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:28:00,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:28:00,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2019-12-07 13:28:00,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140182024] [2019-12-07 13:28:00,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:28:00,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 13:28:00,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2019-12-07 13:28:00,205 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 11 states. [2019-12-07 13:28:00,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:28:00,347 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-12-07 13:28:00,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:28:00,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2019-12-07 13:28:00,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:28:00,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2019-12-07 13:28:00,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 13:28:00,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 13:28:00,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2019-12-07 13:28:00,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 13:28:00,351 INFO L688 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2019-12-07 13:28:00,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2019-12-07 13:28:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2019-12-07 13:28:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 13:28:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2019-12-07 13:28:00,354 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-12-07 13:28:00,354 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-12-07 13:28:00,354 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 13:28:00,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2019-12-07 13:28:00,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-12-07 13:28:00,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 13:28:00,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 13:28:00,355 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:28:00,355 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 13:28:00,355 INFO L794 eck$LassoCheckResult]: Stem: 542#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 535#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 536#L382 assume !(main_~length1~0 < 1); 537#L382-2 assume !(main_~length2~0 < 1); 534#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, 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~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, 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; 530#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 531#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 550#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 540#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 541#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 526#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 527#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 528#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 529#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 533#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 543#L372-5 [2019-12-07 13:28:00,355 INFO L796 eck$LassoCheckResult]: Loop: 543#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 538#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 539#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, 1 + cstrcspn_#t~post211.offset;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 543#L372-5 [2019-12-07 13:28:00,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:00,355 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2019-12-07 13:28:00,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:00,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525154756] [2019-12-07 13:28:00,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:00,386 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:28:00,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:00,386 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2019-12-07 13:28:00,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:00,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367895252] [2019-12-07 13:28:00,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:00,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:28:00,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:00,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2019-12-07 13:28:00,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:00,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413850134] [2019-12-07 13:28:00,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:00,426 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:28:01,010 WARN L192 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 139 [2019-12-07 13:28:01,873 WARN L192 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2019-12-07 13:28:01,875 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 13:28:01,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 13:28:01,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 13:28:01,875 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 13:28:01,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 13:28:01,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 13:28:01,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 13:28:01,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 13:28:01,876 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_diffterm_alloca.i_Iteration5_Lasso [2019-12-07 13:28:01,876 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 13:28:01,876 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 13:28:01,880 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 13:28:01,882 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 13:28:01,884 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 13:28:01,885 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 13:28:01,887 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 13:28:01,888 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 13:28:01,889 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 13:28:01,890 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 13:28:01,892 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 13:28:02,105 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-12-07 13:28:02,763 WARN L192 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2019-12-07 13:28:02,860 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 13:28:02,862 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 13:28:02,864 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 13:28:02,865 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 13:28:02,866 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 13:28:02,867 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 13:28:02,868 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 13:28:02,869 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 13:28:02,870 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 13:28:03,849 WARN L192 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2019-12-07 13:28:03,987 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2019-12-07 13:28:03,996 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 13:28:03,996 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,002 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 13:28:04,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:28:04,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:28:04,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:28:04,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,008 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 13:28:04,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:28:04,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:28:04,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:28:04,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,014 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 13:28:04,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:28:04,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:28:04,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:28:04,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,020 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 13:28:04,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:28:04,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:28:04,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,030 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 13:28:04,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:28:04,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:28:04,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:28:04,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,037 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 13:28:04,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:28:04,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:28:04,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:28:04,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,045 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 13:28:04,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 13:28:04,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 13:28:04,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 13:28:04,047 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,051 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 13:28:04,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:28:04,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:28:04,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 13:28:04,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:28:04,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:28:04,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,070 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 13:28:04,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:28:04,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:28:04,075 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,079 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 13:28:04,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:28:04,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:28:04,095 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,099 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 13:28:04,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 13:28:04,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 13:28:04,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 13:28:04,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 13:28:04,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 13:28:04,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 13:28:04,122 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 13:28:04,170 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2019-12-07 13:28:04,170 INFO L444 ModelExtractionUtils]: 8 out of 49 variables were initially zero. Simplification set additionally 38 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb74e88d-14dd-4a5d-834c-bcde82be7383/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 13:28:04,173 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 13:28:04,175 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 13:28:04,175 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 13:28:04,175 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2019-12-07 13:28:04,284 INFO L297 tatePredicateManager]: 27 out of 28 supporting invariants were superfluous and have been removed [2019-12-07 13:28:04,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 13:28:04,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:04,312 INFO L264 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 13:28:04,313 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:28:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:04,325 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:28:04,325 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:28:04,334 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 13:28:04,335 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 13:28:04,335 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 13:28:04,362 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 46 states and 58 transitions. Complement of second has 6 states. [2019-12-07 13:28:04,363 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 13:28:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 13:28:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-12-07 13:28:04,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-12-07 13:28:04,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:28:04,364 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 13:28:04,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:04,391 INFO L264 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 13:28:04,392 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:28:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:04,404 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:28:04,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:28:04,415 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 13:28:04,415 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 13:28:04,415 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 13:28:04,439 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 46 states and 58 transitions. Complement of second has 6 states. [2019-12-07 13:28:04,439 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 13:28:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 13:28:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-12-07 13:28:04,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-12-07 13:28:04,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:28:04,440 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 13:28:04,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:04,468 INFO L264 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 13:28:04,469 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:28:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:04,481 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:28:04,481 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:28:04,490 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 13:28:04,491 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-12-07 13:28:04,491 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 13:28:04,517 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 45 states and 60 transitions. Complement of second has 5 states. [2019-12-07 13:28:04,518 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 13:28:04,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 13:28:04,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2019-12-07 13:28:04,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2019-12-07 13:28:04,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:28:04,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2019-12-07 13:28:04,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:28:04,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2019-12-07 13:28:04,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 13:28:04,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2019-12-07 13:28:04,520 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 13:28:04,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2019-12-07 13:28:04,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 13:28:04,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 13:28:04,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 13:28:04,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 13:28:04,521 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:28:04,521 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:28:04,521 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:28:04,521 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 13:28:04,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:28:04,521 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 13:28:04,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 13:28:04,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:28:04 BoogieIcfgContainer [2019-12-07 13:28:04,525 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 13:28:04,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:28:04,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:28:04,525 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:28:04,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:27:44" (3/4) ... [2019-12-07 13:28:04,528 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:28:04,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:28:04,529 INFO L168 Benchmark]: Toolchain (without parser) took 21127.96 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 248.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -116.7 MB). Peak memory consumption was 131.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:04,529 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:28:04,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:04,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.69 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 13:28:04,530 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 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 13:28:04,530 INFO L168 Benchmark]: RCFGBuilder took 197.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:04,530 INFO L168 Benchmark]: BuchiAutomizer took 20519.40 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 152.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -10.2 MB). Peak memory consumption was 142.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:04,531 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:28:04,532 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.69 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. * Boogie Preprocessor took 18.47 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. * RCFGBuilder took 197.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 20519.40 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 152.6 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -10.2 MB). Peak memory consumption was 142.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.60 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function length1 + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + -1 * s and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 20.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 19.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 168 SDslu, 100 SDs, 0 SdLazy, 147 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital375 mio100 ax100 hnf99 lsp91 ukn73 mio100 lsp32 div131 bol100 ite100 ukn100 eq167 hnf77 smp88 dnf1057 smp33 tf100 neg94 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...