./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrncpy-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/cstrncpy-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 836fc197f01e8142cd1fe75cc7c363600c112d62 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 20:25:28,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:25:28,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:25:28,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:25:28,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:25:28,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:25:28,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:25:28,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:25:28,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:25:28,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:25:28,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:25:28,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:25:28,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:25:28,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:25:28,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:25:28,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:25:28,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:25:28,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:25:28,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:25:28,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:25:28,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:25:28,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:25:28,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:25:28,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:25:28,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:25:28,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:25:28,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:25:28,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:25:28,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:25:28,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:25:28,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:25:28,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:25:28,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:25:28,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:25:28,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:25:28,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:25:28,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:25:28,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:25:28,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:25:28,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:25:28,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:25:28,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:25:28,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:25:28,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:25:28,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:25:28,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:25:28,347 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:25:28,347 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:25:28,347 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:25:28,347 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:25:28,348 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:25:28,348 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:25:28,348 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:25:28,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:25:28,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:25:28,349 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:25:28,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:25:28,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:25:28,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:25:28,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:25:28,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:25:28,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:25:28,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:25:28,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:25:28,350 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:25:28,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:25:28,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:25:28,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:25:28,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:25:28,352 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:25:28,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:25:28,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:25:28,352 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:25:28,352 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:25:28,354 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:25:28,354 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 836fc197f01e8142cd1fe75cc7c363600c112d62 [2020-10-19 20:25:28,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:25:28,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:25:28,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:25:28,759 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:25:28,760 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:25:28,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrncpy-alloca-2.i [2020-10-19 20:25:28,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb36aea26/5453e1759f9b42b695dcbca7dc0f79d8/FLAG96cb294dc [2020-10-19 20:25:29,402 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:25:29,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrncpy-alloca-2.i [2020-10-19 20:25:29,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb36aea26/5453e1759f9b42b695dcbca7dc0f79d8/FLAG96cb294dc [2020-10-19 20:25:29,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb36aea26/5453e1759f9b42b695dcbca7dc0f79d8 [2020-10-19 20:25:29,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:25:29,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:25:29,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:25:29,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:25:29,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:25:29,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:25:29" (1/1) ... [2020-10-19 20:25:29,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f3d561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:29, skipping insertion in model container [2020-10-19 20:25:29,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:25:29" (1/1) ... [2020-10-19 20:25:29,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:25:29,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:25:30,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:25:30,215 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:25:30,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:25:30,312 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:25:30,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30 WrapperNode [2020-10-19 20:25:30,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:25:30,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:25:30,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:25:30,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:25:30,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:25:30,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:25:30,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:25:30,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:25:30,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (1/1) ... [2020-10-19 20:25:30,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:25:30,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:25:30,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:25:30,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:25:30,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (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 [2020-10-19 20:25:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 20:25:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 20:25:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:25:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 20:25:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:25:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:25:30,923 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:25:30,924 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 20:25:30,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:25:30 BoogieIcfgContainer [2020-10-19 20:25:30,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:25:30,926 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:25:30,926 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:25:30,930 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:25:30,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:25:30,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:25:29" (1/3) ... [2020-10-19 20:25:30,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4618e58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:25:30, skipping insertion in model container [2020-10-19 20:25:30,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:25:30,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:25:30" (2/3) ... [2020-10-19 20:25:30,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4618e58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:25:30, skipping insertion in model container [2020-10-19 20:25:30,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:25:30,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:25:30" (3/3) ... [2020-10-19 20:25:30,935 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrncpy-alloca-2.i [2020-10-19 20:25:30,998 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:25:30,998 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:25:30,999 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:25:30,999 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:25:30,999 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:25:30,999 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:25:31,000 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:25:31,000 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:25:31,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-19 20:25:31,044 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-19 20:25:31,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:31,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:31,051 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:25:31,052 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:31,052 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:25:31,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-19 20:25:31,054 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-19 20:25:31,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:31,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:31,055 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:25:31,055 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:31,063 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 4#L535true assume !(main_~length~0 < 1); 6#L535-2true assume !(main_~n~0 < 1); 3#L538-1true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 12#L544-3true [2020-10-19 20:25:31,064 INFO L796 eck$LassoCheckResult]: Loop: 12#L544-3true assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet13, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 10#L544-2true main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 12#L544-3true [2020-10-19 20:25:31,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:31,072 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-19 20:25:31,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:31,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341281978] [2020-10-19 20:25:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:31,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:31,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:31,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:31,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-10-19 20:25:31,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:31,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15289208] [2020-10-19 20:25:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:31,244 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:31,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:31,254 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:31,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-10-19 20:25:31,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:31,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51299574] [2020-10-19 20:25:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:31,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:31,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:31,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:31,582 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-19 20:25:31,693 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:25:31,694 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:25:31,694 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:25:31,694 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:25:31,695 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:25:31,695 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:31,695 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:25:31,695 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:25:31,695 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy-alloca-2.i_Iteration1_Lasso [2020-10-19 20:25:31,696 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:25:31,696 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:25:31,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,916 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-10-19 20:25:31,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:31,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:32,367 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:25:32,372 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) [2020-10-19 20:25:32,378 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 [2020-10-19 20:25:32,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:32,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:32,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:32,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:32,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:32,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:32,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:32,388 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) [2020-10-19 20:25:32,430 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 [2020-10-19 20:25:32,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:32,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:32,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:32,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:32,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:32,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:32,466 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:25:32,497 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-10-19 20:25:32,498 INFO L444 ModelExtractionUtils]: 8 out of 22 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:25:32,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:32,510 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:25:32,510 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:25:32,512 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2020-10-19 20:25:32,565 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-19 20:25:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:32,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:25:32,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:32,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:25:32,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:25:32,667 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 [2020-10-19 20:25:32,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 3 states. [2020-10-19 20:25:32,732 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 3 states. Result 39 states and 58 transitions. Complement of second has 7 states. [2020-10-19 20:25:32,732 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 [2020-10-19 20:25:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:25:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2020-10-19 20:25:32,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 20:25:32,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:32,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 20:25:32,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:32,742 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-19 20:25:32,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:32,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 58 transitions. [2020-10-19 20:25:32,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 20:25:32,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 13 states and 18 transitions. [2020-10-19 20:25:32,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 20:25:32,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 20:25:32,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2020-10-19 20:25:32,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:25:32,758 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-10-19 20:25:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2020-10-19 20:25:32,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-19 20:25:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 20:25:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2020-10-19 20:25:32,798 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-10-19 20:25:32,798 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-10-19 20:25:32,799 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:25:32,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2020-10-19 20:25:32,800 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 20:25:32,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:32,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:32,801 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:25:32,801 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:32,802 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 128#L-1 havoc main_#res;havoc 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~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 129#L535 assume !(main_~length~0 < 1); 136#L535-2 assume !(main_~n~0 < 1); 130#L538-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 131#L544-3 assume !(main_~i~0 < main_~length~0 - 1); 135#L544-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post2, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~post6, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 139#L520-2 [2020-10-19 20:25:32,803 INFO L796 eck$LassoCheckResult]: Loop: 139#L520-2 assume !!(cstrncpy_~n > 0);cstrncpy_#t~post2 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post2 - 1;havoc cstrncpy_#t~post2;cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 140#L522 assume !(0 == cstrncpy_#t~mem5);havoc cstrncpy_#t~mem5;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset; 139#L520-2 [2020-10-19 20:25:32,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:32,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2020-10-19 20:25:32,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:32,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208249521] [2020-10-19 20:25:32,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:32,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:32,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:32,851 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:32,854 INFO L82 PathProgramCache]: Analyzing trace with hash 2195, now seen corresponding path program 1 times [2020-10-19 20:25:32,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:32,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543350601] [2020-10-19 20:25:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:32,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:32,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:32,907 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:32,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:32,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384832, now seen corresponding path program 1 times [2020-10-19 20:25:32,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:32,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101031030] [2020-10-19 20:25:32,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:33,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:25:33,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101031030] [2020-10-19 20:25:33,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:25:33,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 20:25:33,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008196271] [2020-10-19 20:25:33,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:25:33,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 20:25:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 20:25:33,248 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand 7 states. [2020-10-19 20:25:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:25:33,334 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2020-10-19 20:25:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 20:25:33,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2020-10-19 20:25:33,337 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-19 20:25:33,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 24 transitions. [2020-10-19 20:25:33,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-19 20:25:33,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-19 20:25:33,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-10-19 20:25:33,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:25:33,339 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 20:25:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-10-19 20:25:33,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2020-10-19 20:25:33,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 20:25:33,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-10-19 20:25:33,343 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-19 20:25:33,344 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-19 20:25:33,344 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:25:33,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-10-19 20:25:33,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 20:25:33,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:33,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:33,346 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:25:33,346 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:33,347 INFO L794 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 176#L-1 havoc main_#res;havoc 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~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 177#L535 assume !(main_~length~0 < 1); 185#L535-2 assume !(main_~n~0 < 1); 178#L538-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 179#L544-3 assume !(main_~i~0 < main_~length~0 - 1); 183#L544-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post2, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~post6, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 191#L520-2 assume !!(cstrncpy_~n > 0);cstrncpy_#t~post2 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post2 - 1;havoc cstrncpy_#t~post2;cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 190#L522 assume 0 == cstrncpy_#t~mem5;havoc cstrncpy_#t~mem5;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~n2~0 := cstrncpy_~n; 188#L525-3 [2020-10-19 20:25:33,347 INFO L796 eck$LassoCheckResult]: Loop: 188#L525-3 cstrncpy_#t~post6 := cstrncpy_~n2~0;cstrncpy_~n2~0 := cstrncpy_#t~post6 - 1; 187#L525-1 assume !!(0 != cstrncpy_#t~post6);havoc cstrncpy_#t~post6;cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset := cstrncpy_~us~0.base, cstrncpy_~us~0.offset;cstrncpy_~us~0.base, cstrncpy_~us~0.offset := cstrncpy_#t~post7.base, 1 + cstrncpy_#t~post7.offset;call write~int(0, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, 1);havoc cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset; 188#L525-3 [2020-10-19 20:25:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:33,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384817, now seen corresponding path program 1 times [2020-10-19 20:25:33,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:33,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418981181] [2020-10-19 20:25:33,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:33,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:33,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:33,394 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:33,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:33,395 INFO L82 PathProgramCache]: Analyzing trace with hash 2438, now seen corresponding path program 1 times [2020-10-19 20:25:33,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:33,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883764712] [2020-10-19 20:25:33,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:33,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:33,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:33,406 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:33,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:33,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2087672522, now seen corresponding path program 1 times [2020-10-19 20:25:33,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:33,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170726562] [2020-10-19 20:25:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:33,426 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:33,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:33,463 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:34,224 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 127 [2020-10-19 20:25:34,430 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-19 20:25:34,432 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:25:34,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:25:34,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:25:34,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:25:34,433 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:25:34,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:34,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:25:34,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:25:34,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy-alloca-2.i_Iteration3_Lasso [2020-10-19 20:25:34,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:25:34,434 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:25:34,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,833 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2020-10-19 20:25:34,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:34,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:35,377 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-19 20:25:35,686 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-19 20:25:35,793 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-10-19 20:25:35,874 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:25:35,874 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 20:25:35,884 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 [2020-10-19 20:25:35,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:35,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:35,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:35,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:35,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:35,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:35,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:35,894 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) [2020-10-19 20:25:35,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:25:35,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:35,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:35,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:35,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:35,946 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:35,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:35,955 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 [2020-10-19 20:25:35,989 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 [2020-10-19 20:25:35,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:35,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:35,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:35,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:36,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:36,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:36,022 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 [2020-10-19 20:25:36,055 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 [2020-10-19 20:25:36,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:36,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:36,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:36,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:36,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:36,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:36,063 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 [2020-10-19 20:25:36,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:25:36,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:36,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:36,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:36,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:36,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:36,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:36,097 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 [2020-10-19 20:25:36,122 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 [2020-10-19 20:25:36,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:36,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:36,126 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:25:36,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:36,189 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-19 20:25:36,190 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-19 20:25:36,294 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:25:36,446 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-19 20:25:36,446 INFO L444 ModelExtractionUtils]: 71 out of 111 variables were initially zero. Simplification set additionally 37 variables to zero. 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 [2020-10-19 20:25:36,459 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 20:25:36,471 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-10-19 20:25:36,471 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:25:36,471 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~us~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_2) = -1*ULTIMATE.start_cstrncpy_~us~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_2 Supporting invariants [] [2020-10-19 20:25:36,596 INFO L297 tatePredicateManager]: 14 out of 16 supporting invariants were superfluous and have been removed [2020-10-19 20:25:36,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 20:25:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:36,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 20:25:36,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:36,726 WARN L261 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 20:25:36,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:36,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:25:36,727 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2020-10-19 20:25:36,727 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-10-19 20:25:36,792 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 5 states. Result 18 states and 24 transitions. Complement of second has 6 states. [2020-10-19 20:25:36,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 20:25:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 20:25:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-10-19 20:25:36,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 20:25:36,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:36,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 20:25:36,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:36,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2020-10-19 20:25:36,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:36,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2020-10-19 20:25:36,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:25:36,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 11 states and 14 transitions. [2020-10-19 20:25:36,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 20:25:36,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 20:25:36,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-10-19 20:25:36,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:25:36,797 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-19 20:25:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-10-19 20:25:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-19 20:25:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 20:25:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-10-19 20:25:36,799 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-19 20:25:36,800 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-19 20:25:36,800 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:25:36,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-10-19 20:25:36,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:25:36,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:25:36,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:25:36,801 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:25:36,802 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:25:36,802 INFO L794 eck$LassoCheckResult]: Stem: 344#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 338#L-1 havoc main_#res;havoc 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~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 339#L535 assume !(main_~length~0 < 1); 346#L535-2 assume !(main_~n~0 < 1); 340#L538-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 341#L544-3 assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet13, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 342#L544-2 main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 343#L544-3 assume !(main_~i~0 < main_~length~0 - 1); 345#L544-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset, cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post2, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~post6, cstrncpy_~s1.base, cstrncpy_~s1.offset, cstrncpy_~s2.base, cstrncpy_~s2.offset, cstrncpy_~n, cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset, cstrncpy_~src~0.base, cstrncpy_~src~0.offset, cstrncpy_~us~0.base, cstrncpy_~us~0.offset, cstrncpy_~n2~0;cstrncpy_~s1.base, cstrncpy_~s1.offset := cstrncpy_#in~s1.base, cstrncpy_#in~s1.offset;cstrncpy_~s2.base, cstrncpy_~s2.offset := cstrncpy_#in~s2.base, cstrncpy_#in~s2.offset;cstrncpy_~n := cstrncpy_#in~n;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_~s1.base, cstrncpy_~s1.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_~s2.base, cstrncpy_~s2.offset;havoc cstrncpy_~us~0.base, cstrncpy_~us~0.offset;havoc cstrncpy_~n2~0; 347#L520-2 [2020-10-19 20:25:36,802 INFO L796 eck$LassoCheckResult]: Loop: 347#L520-2 assume !!(cstrncpy_~n > 0);cstrncpy_#t~post2 := cstrncpy_~n;cstrncpy_~n := cstrncpy_#t~post2 - 1;havoc cstrncpy_#t~post2;cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset;cstrncpy_~dst~0.base, cstrncpy_~dst~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~src~0.base, cstrncpy_~src~0.offset;cstrncpy_~src~0.base, cstrncpy_~src~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 348#L522 assume !(0 == cstrncpy_#t~mem5);havoc cstrncpy_#t~mem5;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset; 347#L520-2 [2020-10-19 20:25:36,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:36,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2020-10-19 20:25:36,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:36,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669014169] [2020-10-19 20:25:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:36,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:36,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:36,826 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:36,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:36,827 INFO L82 PathProgramCache]: Analyzing trace with hash 2195, now seen corresponding path program 2 times [2020-10-19 20:25:36,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:36,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152777153] [2020-10-19 20:25:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:36,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:36,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:36,842 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:36,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:36,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626526, now seen corresponding path program 1 times [2020-10-19 20:25:36,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:25:36,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696644871] [2020-10-19 20:25:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:25:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:36,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:25:36,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:25:36,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:25:37,360 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2020-10-19 20:25:37,536 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-19 20:25:37,539 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:25:37,539 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:25:37,539 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:25:37,539 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:25:37,539 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:25:37,539 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:37,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:25:37,540 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:25:37,540 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncpy-alloca-2.i_Iteration4_Lasso [2020-10-19 20:25:37,540 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:25:37,540 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:25:37,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:37,866 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-10-19 20:25:38,011 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-10-19 20:25:38,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:25:38,665 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:25:38,665 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-19 20:25:38,669 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 [2020-10-19 20:25:38,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,673 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:38,696 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 [2020-10-19 20:25:38,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,700 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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:38,722 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 [2020-10-19 20:25:38,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,726 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 [2020-10-19 20:25:38,756 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 [2020-10-19 20:25:38,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,761 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:38,761 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:38,765 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 [2020-10-19 20:25:38,792 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 [2020-10-19 20:25:38,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,796 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 [2020-10-19 20:25:38,820 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 [2020-10-19 20:25:38,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,824 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 [2020-10-19 20:25:38,849 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 [2020-10-19 20:25:38,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,854 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 [2020-10-19 20:25:38,879 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 [2020-10-19 20:25:38,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,883 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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:38,913 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 [2020-10-19 20:25:38,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,918 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 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 [2020-10-19 20:25:38,943 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 [2020-10-19 20:25:38,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:38,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:25:38,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,947 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 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 [2020-10-19 20:25:38,972 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 [2020-10-19 20:25:38,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:38,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:25:38,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:38,974 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 20:25:38,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:38,975 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 20:25:38,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:25:38,977 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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:39,001 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 [2020-10-19 20:25:39,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:39,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:39,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:39,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:39,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:39,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:39,012 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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:39,034 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 [2020-10-19 20:25:39,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:39,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:39,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:39,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:39,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:39,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:25:39,043 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) [2020-10-19 20:25:39,081 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 [2020-10-19 20:25:39,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:39,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:39,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:39,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:39,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:39,087 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 [2020-10-19 20:25:39,095 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) [2020-10-19 20:25:39,137 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 [2020-10-19 20:25:39,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:25:39,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:25:39,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:25:39,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:25:39,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:25:39,149 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 [2020-10-19 20:25:39,167 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:25:39,209 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-10-19 20:25:39,209 INFO L444 ModelExtractionUtils]: 10 out of 34 variables were initially zero. Simplification set additionally 22 variables to zero. 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) [2020-10-19 20:25:39,214 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:25:39,218 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:25:39,218 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:25:39,219 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n) = 1*ULTIMATE.start_cstrncpy_~n Supporting invariants [] [2020-10-19 20:25:39,281 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-19 20:25:39,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:25:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:39,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:25:39,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:25:39,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:25:39,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:25:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:25:39,387 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 [2020-10-19 20:25:39,387 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-19 20:25:39,394 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 13 states and 16 transitions. Complement of second has 4 states. [2020-10-19 20:25:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 20:25:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:25:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2020-10-19 20:25:39,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 20:25:39,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:39,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 20:25:39,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:39,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2020-10-19 20:25:39,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:25:39,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2020-10-19 20:25:39,398 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:25:39,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-10-19 20:25:39,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:25:39,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:25:39,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:25:39,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:25:39,398 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:25:39,398 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:25:39,399 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:25:39,399 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 20:25:39,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 20:25:39,399 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:25:39,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 20:25:39,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:25:39 BoogieIcfgContainer [2020-10-19 20:25:39,406 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:25:39,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:25:39,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:25:39,406 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:25:39,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:25:30" (3/4) ... [2020-10-19 20:25:39,410 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 20:25:39,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:25:39,412 INFO L168 Benchmark]: Toolchain (without parser) took 9714.64 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.1 MB). Free memory was 958.6 MB in the beginning and 818.2 MB in the end (delta: 140.4 MB). Peak memory consumption was 434.6 MB. Max. memory is 11.5 GB. [2020-10-19 20:25:39,413 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:25:39,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2020-10-19 20:25:39,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2020-10-19 20:25:39,415 INFO L168 Benchmark]: Boogie Preprocessor took 64.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-10-19 20:25:39,416 INFO L168 Benchmark]: RCFGBuilder took 477.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2020-10-19 20:25:39,416 INFO L168 Benchmark]: BuchiAutomizer took 8479.47 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 818.2 MB in the end (delta: 246.9 MB). Peak memory consumption was 430.4 MB. Max. memory is 11.5 GB. [2020-10-19 20:25:39,417 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 1.3 GB. Free memory is still 818.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:25:39,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 609.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 477.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8479.47 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 818.2 MB in the end (delta: 246.9 MB). Peak memory consumption was 430.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.53 ms. Allocated memory is still 1.3 GB. Free memory is still 818.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function -1 * us + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function n and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 7.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 51 SDtfs, 67 SDslu, 61 SDs, 0 SdLazy, 49 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital196 mio100 ax109 hnf98 lsp86 ukn84 mio100 lsp46 div100 bol100 ite100 ukn100 eq189 hnf88 smp99 dnf110 smp100 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 352ms VariablesStem: 21 VariablesLoop: 13 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...