./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c15bd857267d499e7ecc6e455c2b5fbe7515d7da ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 06:01:59,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 06:02:00,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 06:02:00,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 06:02:00,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 06:02:00,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 06:02:00,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 06:02:00,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 06:02:00,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 06:02:00,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 06:02:00,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 06:02:00,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 06:02:00,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 06:02:00,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 06:02:00,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 06:02:00,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 06:02:00,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 06:02:00,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 06:02:00,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 06:02:00,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 06:02:00,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 06:02:00,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 06:02:00,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 06:02:00,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 06:02:00,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 06:02:00,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 06:02:00,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 06:02:00,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 06:02:00,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 06:02:00,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 06:02:00,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 06:02:00,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 06:02:00,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 06:02:00,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 06:02:00,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 06:02:00,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 06:02:00,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 06:02:00,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 06:02:00,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 06:02:00,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 06:02:00,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 06:02:00,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 06:02:00,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 06:02:00,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 06:02:00,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 06:02:00,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 06:02:00,232 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 06:02:00,232 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 06:02:00,233 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 06:02:00,233 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 06:02:00,234 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 06:02:00,234 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 06:02:00,235 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 06:02:00,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 06:02:00,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 06:02:00,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 06:02:00,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 06:02:00,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 06:02:00,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 06:02:00,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 06:02:00,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 06:02:00,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 06:02:00,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 06:02:00,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 06:02:00,239 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 06:02:00,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 06:02:00,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 06:02:00,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 06:02:00,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 06:02:00,241 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 06:02:00,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 06:02:00,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 06:02:00,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 06:02:00,243 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 06:02:00,245 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 06:02:00,246 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c15bd857267d499e7ecc6e455c2b5fbe7515d7da [2020-10-26 06:02:00,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 06:02:00,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 06:02:00,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 06:02:00,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 06:02:00,774 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 06:02:00,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2020-10-26 06:02:00,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847e2de72/03054c2dfa8c47dda56c0ec0a9fca652/FLAG285c2b620 [2020-10-26 06:02:01,511 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 06:02:01,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2020-10-26 06:02:01,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847e2de72/03054c2dfa8c47dda56c0ec0a9fca652/FLAG285c2b620 [2020-10-26 06:02:01,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847e2de72/03054c2dfa8c47dda56c0ec0a9fca652 [2020-10-26 06:02:01,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 06:02:01,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 06:02:01,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:01,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 06:02:01,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 06:02:01,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:01" (1/1) ... [2020-10-26 06:02:01,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3847aa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:01, skipping insertion in model container [2020-10-26 06:02:01,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:01" (1/1) ... [2020-10-26 06:02:01,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 06:02:02,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 06:02:02,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:02,412 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 06:02:02,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:02,531 INFO L208 MainTranslator]: Completed translation [2020-10-26 06:02:02,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02 WrapperNode [2020-10-26 06:02:02,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:02,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:02,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 06:02:02,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 06:02:02,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:02,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 06:02:02,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 06:02:02,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 06:02:02,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... [2020-10-26 06:02:02,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 06:02:02,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 06:02:02,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 06:02:02,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 06:02:02,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 06:02:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 06:02:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 06:02:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 06:02:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 06:02:02,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 06:02:03,273 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 06:02:03,273 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-26 06:02:03,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:03 BoogieIcfgContainer [2020-10-26 06:02:03,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 06:02:03,277 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 06:02:03,277 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 06:02:03,280 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 06:02:03,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:03,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 06:02:01" (1/3) ... [2020-10-26 06:02:03,283 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c213bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:03, skipping insertion in model container [2020-10-26 06:02:03,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:03,283 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:02" (2/3) ... [2020-10-26 06:02:03,284 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c213bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:03, skipping insertion in model container [2020-10-26 06:02:03,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:03,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:03" (3/3) ... [2020-10-26 06:02:03,287 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrcat-alloca-2.i [2020-10-26 06:02:03,360 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 06:02:03,360 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 06:02:03,360 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 06:02:03,360 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 06:02:03,360 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 06:02:03,361 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 06:02:03,361 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 06:02:03,361 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 06:02:03,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-26 06:02:03,404 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-26 06:02:03,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:03,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:03,412 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 06:02:03,413 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:03,413 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 06:02:03,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-10-26 06:02:03,418 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-26 06:02:03,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:03,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:03,420 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 06:02:03,420 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:03,428 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 23#L527true assume !(main_~length1~0 < 1); 7#L527-2true assume !(main_~length2~0 < 2); 19#L530-1true assume !(main_~length3~0 < 1); 11#L533-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 5#L540-3true [2020-10-26 06:02:03,429 INFO L796 eck$LassoCheckResult]: Loop: 5#L540-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet13, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 22#L540-2true main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 5#L540-3true [2020-10-26 06:02:03,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:03,437 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-10-26 06:02:03,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:03,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128173651] [2020-10-26 06:02:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:03,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:03,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:03,620 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:03,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:03,623 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2020-10-26 06:02:03,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:03,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611922530] [2020-10-26 06:02:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:03,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:03,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:03,648 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:03,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:03,651 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2020-10-26 06:02:03,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:03,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740457335] [2020-10-26 06:02:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:03,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:03,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:03,740 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:04,017 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2020-10-26 06:02:04,117 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:04,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:04,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:04,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:04,119 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:04,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:04,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:04,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:04,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration1_Lasso [2020-10-26 06:02:04,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:04,121 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:04,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:04,722 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:04,727 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:04,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:04,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:04,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:04,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:04,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:04,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:04,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:04,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:04,749 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:04,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:04,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:04,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:04,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:04,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:04,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:04,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:04,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:04,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:04,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:04,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:04,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:04,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:04,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:04,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:04,854 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:04,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:04,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:04,899 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 [2020-10-26 06:02:04,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:04,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:04,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:04,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:04,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:04,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:04,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:04,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:04,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:04,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:04,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:04,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:04,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:04,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:04,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:04,971 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:04,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:05,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:05,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:05,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:05,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:05,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:05,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:05,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:05,094 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:05,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:05,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:05,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:05,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:05,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:05,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:05,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:05,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:05,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:05,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:05,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:05,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:05,317 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:05,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:05,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:05,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,414 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:05,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:05,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:05,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:05,473 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:05,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:05,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:05,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:05,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:05,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:05,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:05,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:05,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:05,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:05,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:05,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:05,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:05,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:05,799 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-26 06:02:05,799 INFO L444 ModelExtractionUtils]: 17 out of 31 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:05,809 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 06:02:05,814 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:05,814 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:05,815 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-26 06:02:05,858 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-26 06:02:05,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:05,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:02:05,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:05,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:02:05,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:05,959 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 06:02:05,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 3 states. [2020-10-26 06:02:06,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 3 states. Result 52 states and 74 transitions. Complement of second has 7 states. [2020-10-26 06:02:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:02:06,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2020-10-26 06:02:06,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-26 06:02:06,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:06,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-26 06:02:06,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:06,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 52 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-26 06:02:06,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:06,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 74 transitions. [2020-10-26 06:02:06,034 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:02:06,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 17 states and 24 transitions. [2020-10-26 06:02:06,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-26 06:02:06,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-26 06:02:06,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2020-10-26 06:02:06,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:06,042 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-26 06:02:06,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2020-10-26 06:02:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-26 06:02:06,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-26 06:02:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2020-10-26 06:02:06,093 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-26 06:02:06,094 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-10-26 06:02:06,094 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 06:02:06,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2020-10-26 06:02:06,095 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:02:06,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:06,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:06,096 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:06,096 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:06,096 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 159#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 160#L527 assume !(main_~length1~0 < 1); 156#L527-2 assume !(main_~length2~0 < 2); 157#L530-1 assume !(main_~length3~0 < 1); 161#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 151#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 153#L540-4 main_~i~1 := 0; 155#L545-3 [2020-10-26 06:02:06,097 INFO L796 eck$LassoCheckResult]: Loop: 155#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 158#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 155#L545-3 [2020-10-26 06:02:06,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:06,097 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2020-10-26 06:02:06,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:06,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616424841] [2020-10-26 06:02:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:06,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:06,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:06,129 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:06,130 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2020-10-26 06:02:06,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:06,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122091285] [2020-10-26 06:02:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:06,137 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:06,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:06,144 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:06,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:06,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2020-10-26 06:02:06,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:06,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763952223] [2020-10-26 06:02:06,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:06,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:06,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:06,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:06,486 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-10-26 06:02:06,580 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:06,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:06,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:06,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:06,581 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:06,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:06,581 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:06,581 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:06,581 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration2_Lasso [2020-10-26 06:02:06,581 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:06,582 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:06,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,768 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-26 06:02:06,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:06,984 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-10-26 06:02:07,270 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:07,270 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:07,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:07,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:07,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:07,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:07,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:07,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:07,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:07,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:07,288 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:07,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:07,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:07,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:07,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:07,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:07,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:07,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:07,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:07,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:07,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:07,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:07,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:07,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:07,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:07,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:07,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:07,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:07,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:07,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:07,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:07,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:07,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:07,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:07,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:07,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:07,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:07,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:07,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:07,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:07,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:07,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:07,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:07,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:07,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:07,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:07,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:07,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:07,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:07,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:07,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:07,561 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:07,592 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-10-26 06:02:07,592 INFO L444 ModelExtractionUtils]: 21 out of 34 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:07,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:07,599 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-26 06:02:07,599 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:07,600 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_2 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2020-10-26 06:02:07,650 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2020-10-26 06:02:07,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:07,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 06:02:07,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:07,749 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 06:02:07,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:07,778 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 06:02:07,778 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-26 06:02:07,835 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 24 states and 36 transitions. Complement of second has 7 states. [2020-10-26 06:02:07,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:02:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2020-10-26 06:02:07,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-26 06:02:07,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:07,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-26 06:02:07,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:07,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-26 06:02:07,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:07,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2020-10-26 06:02:07,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:02:07,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 26 transitions. [2020-10-26 06:02:07,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-26 06:02:07,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-26 06:02:07,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2020-10-26 06:02:07,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:07,842 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-26 06:02:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2020-10-26 06:02:07,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-26 06:02:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 06:02:07,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2020-10-26 06:02:07,844 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-26 06:02:07,845 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2020-10-26 06:02:07,845 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 06:02:07,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2020-10-26 06:02:07,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:02:07,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:07,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:07,847 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:07,847 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:07,847 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 289#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 290#L527 assume !(main_~length1~0 < 1); 285#L527-2 assume !(main_~length2~0 < 2); 286#L530-1 assume !(main_~length3~0 < 1); 291#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 280#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 282#L540-4 main_~i~1 := 0; 284#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 292#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 279#L517-3 [2020-10-26 06:02:07,847 INFO L796 eck$LassoCheckResult]: Loop: 279#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 277#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 279#L517-3 [2020-10-26 06:02:07,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:07,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2020-10-26 06:02:07,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:07,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159024316] [2020-10-26 06:02:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:07,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159024316] [2020-10-26 06:02:07,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:07,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 06:02:07,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867012143] [2020-10-26 06:02:07,952 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:02:07,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:07,953 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2020-10-26 06:02:07,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:07,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779963010] [2020-10-26 06:02:07,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:07,973 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:07,977 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:08,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:08,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 06:02:08,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 06:02:08,038 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-10-26 06:02:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:08,070 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-10-26 06:02:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 06:02:08,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-10-26 06:02:08,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:02:08,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2020-10-26 06:02:08,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-26 06:02:08,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-26 06:02:08,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2020-10-26 06:02:08,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:08,077 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-26 06:02:08,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2020-10-26 06:02:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-26 06:02:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 06:02:08,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-26 06:02:08,079 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 06:02:08,079 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 06:02:08,079 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 06:02:08,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-10-26 06:02:08,080 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:02:08,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:08,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:08,083 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:08,083 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:08,084 INFO L794 eck$LassoCheckResult]: Stem: 337#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 333#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 334#L527 assume !(main_~length1~0 < 1); 329#L527-2 assume !(main_~length2~0 < 2); 330#L530-1 assume !(main_~length3~0 < 1); 335#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 324#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 326#L540-4 main_~i~1 := 0; 328#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 331#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 332#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 336#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 323#L517-3 [2020-10-26 06:02:08,084 INFO L796 eck$LassoCheckResult]: Loop: 323#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 321#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 323#L517-3 [2020-10-26 06:02:08,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:08,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2020-10-26 06:02:08,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:08,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402951966] [2020-10-26 06:02:08,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:08,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:08,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:08,167 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:08,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:08,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2020-10-26 06:02:08,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:08,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025694674] [2020-10-26 06:02:08,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:08,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:08,175 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:08,177 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:08,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:08,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017530, now seen corresponding path program 1 times [2020-10-26 06:02:08,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:08,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692749911] [2020-10-26 06:02:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:08,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692749911] [2020-10-26 06:02:08,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875669593] [2020-10-26 06:02:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:02:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:08,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjunts are in the unsatisfiable core [2020-10-26 06:02:08,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:08,736 INFO L350 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2020-10-26 06:02:08,737 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2020-10-26 06:02:08,737 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:08,755 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:08,768 INFO L545 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. [2020-10-26 06:02:08,768 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:54, output treesize:38 [2020-10-26 06:02:08,974 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-26 06:02:08,995 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:08,995 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 46 [2020-10-26 06:02:08,996 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 06:02:09,011 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 06:02:09,016 INFO L545 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 06:02:09,017 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:48, output treesize:3 [2020-10-26 06:02:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:09,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 06:02:09,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-10-26 06:02:09,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168965764] [2020-10-26 06:02:09,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:09,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 06:02:09,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-26 06:02:09,060 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 15 states. [2020-10-26 06:02:11,149 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2020-10-26 06:02:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:11,187 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2020-10-26 06:02:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 06:02:11,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2020-10-26 06:02:11,190 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:02:11,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 35 transitions. [2020-10-26 06:02:11,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-26 06:02:11,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-26 06:02:11,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-10-26 06:02:11,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:11,192 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-26 06:02:11,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-10-26 06:02:11,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2020-10-26 06:02:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-26 06:02:11,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-10-26 06:02:11,195 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-10-26 06:02:11,195 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-10-26 06:02:11,195 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 06:02:11,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2020-10-26 06:02:11,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:02:11,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:11,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:11,197 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:11,197 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:11,198 INFO L794 eck$LassoCheckResult]: Stem: 457#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 452#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 453#L527 assume !(main_~length1~0 < 1); 446#L527-2 assume !(main_~length2~0 < 2); 447#L530-1 assume !(main_~length3~0 < 1); 454#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 441#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 443#L540-4 main_~i~1 := 0; 445#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 450#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 451#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 455#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 460#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 439#L517-1 assume !(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2; 440#L519-2 [2020-10-26 06:02:11,198 INFO L796 eck$LassoCheckResult]: Loop: 440#L519-2 cstrcat_#t~post4.base, cstrcat_#t~post4.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post4.base, 1 + cstrcat_#t~post4.offset;cstrcat_#t~post5.base, cstrcat_#t~post5.offset := cstrcat_~s2.base, cstrcat_~s2.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#t~post5.base, 1 + cstrcat_#t~post5.offset;call cstrcat_#t~mem6 := read~int(cstrcat_#t~post5.base, cstrcat_#t~post5.offset, 1);call write~int(cstrcat_#t~mem6, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, 1); 459#L519 assume !!(0 != cstrcat_#t~mem6);havoc cstrcat_#t~post4.base, cstrcat_#t~post4.offset;havoc cstrcat_#t~post5.base, cstrcat_#t~post5.offset;havoc cstrcat_#t~mem6; 440#L519-2 [2020-10-26 06:02:11,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1899017532, now seen corresponding path program 1 times [2020-10-26 06:02:11,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951572561] [2020-10-26 06:02:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,247 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,248 INFO L82 PathProgramCache]: Analyzing trace with hash 3206, now seen corresponding path program 1 times [2020-10-26 06:02:11,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502972334] [2020-10-26 06:02:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:11,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,260 INFO L82 PathProgramCache]: Analyzing trace with hash 405254793, now seen corresponding path program 1 times [2020-10-26 06:02:11,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782507897] [2020-10-26 06:02:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 06:02:11,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782507897] [2020-10-26 06:02:11,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:02:11,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 06:02:11,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356680466] [2020-10-26 06:02:11,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:02:11,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 06:02:11,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 06:02:11,523 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-10-26 06:02:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:02:11,612 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2020-10-26 06:02:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 06:02:11,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2020-10-26 06:02:11,614 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:02:11,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 42 transitions. [2020-10-26 06:02:11,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-26 06:02:11,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-26 06:02:11,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2020-10-26 06:02:11,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:11,615 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2020-10-26 06:02:11,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2020-10-26 06:02:11,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-26 06:02:11,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-26 06:02:11,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2020-10-26 06:02:11,619 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-10-26 06:02:11,619 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2020-10-26 06:02:11,619 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 06:02:11,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2020-10-26 06:02:11,620 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:02:11,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:11,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:11,621 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:11,621 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:11,622 INFO L794 eck$LassoCheckResult]: Stem: 536#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 530#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~nondet15, main_#t~post14, main_~i~1, main_#t~ret16.base, main_#t~ret16.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 531#L527 assume !(main_~length1~0 < 1); 524#L527-2 assume !(main_~length2~0 < 2); 525#L530-1 assume !(main_~length3~0 < 1); 532#L533-1 assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 518#L540-3 assume !(main_~i~0 < main_~length1~0 - 1); 520#L540-4 main_~i~1 := 0; 523#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 544#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 543#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet15, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet15; 542#L545-2 main_#t~post14 := main_~i~1;main_~i~1 := 1 + main_#t~post14;havoc main_#t~post14; 541#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 540#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset, cstrcat_#t~mem2, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 517#L517-3 [2020-10-26 06:02:11,622 INFO L796 eck$LassoCheckResult]: Loop: 517#L517-3 call cstrcat_#t~mem2 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 516#L517-1 assume !!(0 != cstrcat_#t~mem2);havoc cstrcat_#t~mem2;cstrcat_#t~post3.base, cstrcat_#t~post3.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post3.base, 1 + cstrcat_#t~post3.offset;havoc cstrcat_#t~post3.base, cstrcat_#t~post3.offset; 517#L517-3 [2020-10-26 06:02:11,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1898962205, now seen corresponding path program 2 times [2020-10-26 06:02:11,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767605026] [2020-10-26 06:02:11,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:11,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,652 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 3 times [2020-10-26 06:02:11,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739968213] [2020-10-26 06:02:11,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:11,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:11,661 INFO L82 PathProgramCache]: Analyzing trace with hash 458423656, now seen corresponding path program 2 times [2020-10-26 06:02:11,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:11,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786205395] [2020-10-26 06:02:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:11,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:11,706 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:12,566 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 122 [2020-10-26 06:02:12,862 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-26 06:02:12,866 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:12,866 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:12,866 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:12,866 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:12,866 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:12,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:12,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:12,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:12,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration6_Lasso [2020-10-26 06:02:12,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:12,867 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:12,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:12,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,423 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-10-26 06:02:13,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:13,867 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-26 06:02:14,201 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-26 06:02:14,351 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:02:14,351 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,372 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:14,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:14,408 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:14,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:14,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,664 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:14,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:02:14,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:14,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:02:14,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:02:14,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,874 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:14,874 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:14,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:14,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:14,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:14,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:14,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:14,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:14,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:14,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:14,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:14,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:02:14,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:15,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:15,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:15,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:15,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:15,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:15,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:15,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:15,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:15,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:02:15,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:02:15,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:02:15,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:02:15,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:02:15,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:02:15,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:15,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:02:15,150 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-26 06:02:15,150 INFO L444 ModelExtractionUtils]: 36 out of 55 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:02:15,155 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:15,158 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:02:15,159 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:02:15,159 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2020-10-26 06:02:15,252 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-26 06:02:15,254 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:02:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:15,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:02:15,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:02:15,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 06:02:15,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:02:15,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:02:15,324 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 06:02:15,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15 Second operand 3 states. [2020-10-26 06:02:15,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 40 states and 52 transitions. Complement of second has 6 states. [2020-10-26 06:02:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:02:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:02:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-10-26 06:02:15,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 14 letters. Loop has 2 letters. [2020-10-26 06:02:15,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:15,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2020-10-26 06:02:15,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:15,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-26 06:02:15,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:02:15,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2020-10-26 06:02:15,350 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:02:15,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2020-10-26 06:02:15,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 06:02:15,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 06:02:15,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 06:02:15,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:02:15,351 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:15,351 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:15,351 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:02:15,351 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-26 06:02:15,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 06:02:15,351 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:02:15,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 06:02:15,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 06:02:15 BoogieIcfgContainer [2020-10-26 06:02:15,360 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 06:02:15,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 06:02:15,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 06:02:15,361 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 06:02:15,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:03" (3/4) ... [2020-10-26 06:02:15,365 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 06:02:15,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 06:02:15,367 INFO L168 Benchmark]: Toolchain (without parser) took 13503.48 ms. Allocated memory was 41.9 MB in the beginning and 130.0 MB in the end (delta: 88.1 MB). Free memory was 27.1 MB in the beginning and 55.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:15,368 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory was 24.5 MB in the beginning and 24.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:15,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.64 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.5 MB in the beginning and 23.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:15,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.49 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 33.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:15,370 INFO L168 Benchmark]: Boogie Preprocessor took 35.77 ms. Allocated memory is still 50.3 MB. Free memory was 33.9 MB in the beginning and 32.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:02:15,370 INFO L168 Benchmark]: RCFGBuilder took 644.45 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 28.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:15,371 INFO L168 Benchmark]: BuchiAutomizer took 12083.77 ms. Allocated memory was 50.3 MB in the beginning and 130.0 MB in the end (delta: 79.7 MB). Free memory was 28.9 MB in the beginning and 56.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 50.4 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:15,371 INFO L168 Benchmark]: Witness Printer took 4.83 ms. Allocated memory is still 130.0 MB. Free memory was 56.8 MB in the beginning and 55.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:02:15,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 41.9 MB. Free memory was 24.5 MB in the beginning and 24.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 640.64 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.5 MB in the beginning and 23.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.49 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 33.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.77 ms. Allocated memory is still 50.3 MB. Free memory was 33.9 MB in the beginning and 32.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 644.45 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 28.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12083.77 ms. Allocated memory was 50.3 MB in the beginning and 130.0 MB in the end (delta: 79.7 MB). Free memory was 28.9 MB in the beginning and 56.8 MB in the end (delta: -27.9 MB). Peak memory consumption was 50.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.83 ms. Allocated memory is still 130.0 MB. Free memory was 56.8 MB in the beginning and 55.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.0s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 9.1s. Construction of modules took 1.6s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 32 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 186 SDslu, 170 SDs, 0 SdLazy, 188 SolverSat, 36 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.6s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital180 mio100 ax111 hnf98 lsp83 ukn74 mio100 lsp60 div100 bol100 ite100 ukn100 eq165 hnf91 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms 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...