./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 54ff0e2671f1fbdd267f9aba90cfe8fb60d3ccde ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:21:03,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:21:03,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:21:03,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:21:03,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:21:03,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:21:03,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:21:03,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:21:03,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:21:03,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:21:03,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:21:03,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:21:03,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:21:03,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:21:03,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:21:03,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:21:03,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:21:03,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:21:03,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:21:03,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:21:03,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:21:03,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:21:03,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:21:03,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:21:03,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:21:03,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:21:03,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:21:03,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:21:03,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:21:03,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:21:03,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:21:03,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:21:03,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:21:03,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:21:03,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:21:03,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:21:03,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:21:03,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:21:03,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:21:03,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:21:03,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:21:03,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:21:03,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:21:03,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:21:03,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:21:03,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:21:03,354 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:21:03,355 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:21:03,355 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:21:03,355 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:21:03,355 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:21:03,355 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:21:03,356 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:21:03,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:21:03,356 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:21:03,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:21:03,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:21:03,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:21:03,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:21:03,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:21:03,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:21:03,357 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:21:03,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:21:03,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:21:03,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:21:03,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:21:03,358 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:21:03,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:21:03,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:21:03,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:21:03,359 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:21:03,360 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:21:03,361 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54ff0e2671f1fbdd267f9aba90cfe8fb60d3ccde [2020-10-26 04:21:03,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:21:03,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:21:03,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:21:03,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:21:03,824 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:21:03,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i [2020-10-26 04:21:03,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f067e3362/7226547c8b394d2d9b8cb6413651e24a/FLAGe63c9737c [2020-10-26 04:21:04,534 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:21:04,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i [2020-10-26 04:21:04,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f067e3362/7226547c8b394d2d9b8cb6413651e24a/FLAGe63c9737c [2020-10-26 04:21:04,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f067e3362/7226547c8b394d2d9b8cb6413651e24a [2020-10-26 04:21:04,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:21:04,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:21:04,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:21:04,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:21:04,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:21:04,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:21:04" (1/1) ... [2020-10-26 04:21:04,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c732d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:04, skipping insertion in model container [2020-10-26 04:21:04,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:21:04" (1/1) ... [2020-10-26 04:21:04,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:21:04,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:21:05,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:21:05,340 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:21:05,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:21:05,465 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:21:05,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05 WrapperNode [2020-10-26 04:21:05,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:21:05,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:21:05,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:21:05,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:21:05,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:21:05,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:21:05,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:21:05,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:21:05,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... [2020-10-26 04:21:05,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:21:05,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:21:05,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:21:05,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:21:05,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:21:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:21:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:21:05,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:21:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:21:05,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:21:06,018 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:21:06,018 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-26 04:21:06,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:21:06 BoogieIcfgContainer [2020-10-26 04:21:06,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:21:06,021 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:21:06,021 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:21:06,025 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:21:06,025 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:21:06,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:21:04" (1/3) ... [2020-10-26 04:21:06,027 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@207d9503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:21:06, skipping insertion in model container [2020-10-26 04:21:06,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:21:06,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:21:05" (2/3) ... [2020-10-26 04:21:06,027 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@207d9503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:21:06, skipping insertion in model container [2020-10-26 04:21:06,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:21:06,028 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:21:06" (3/3) ... [2020-10-26 04:21:06,029 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrcspn-alloca-2.i [2020-10-26 04:21:06,082 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:21:06,082 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:21:06,083 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:21:06,083 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:21:06,083 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:21:06,083 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:21:06,083 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:21:06,083 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:21:06,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-26 04:21:06,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 04:21:06,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:21:06,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:21:06,120 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:21:06,120 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:21:06,120 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:21:06,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-26 04:21:06,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 04:21:06,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:21:06,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:21:06,123 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:21:06,123 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:21:06,131 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 7#L565true assume !(main_~length1~0 < 1); 12#L565-2true assume !(main_~length2~0 < 1); 6#L568-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 3#L552-4true [2020-10-26 04:21:06,132 INFO L796 eck$LassoCheckResult]: Loop: 3#L552-4true call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 14#L552-1true assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 16#L555-5true assume !true; 19#L555-6true call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 5#L557true assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 20#L552-3true cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 3#L552-4true [2020-10-26 04:21:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:06,139 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-26 04:21:06,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:06,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033196742] [2020-10-26 04:21:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,328 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:06,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:06,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2020-10-26 04:21:06,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:06,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945567064] [2020-10-26 04:21:06,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:06,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945567064] [2020-10-26 04:21:06,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:21:06,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:21:06,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926439247] [2020-10-26 04:21:06,412 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-26 04:21:06,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:21:06,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-26 04:21:06,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-26 04:21:06,435 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-26 04:21:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:21:06,444 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-10-26 04:21:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 04:21:06,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-10-26 04:21:06,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 04:21:06,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2020-10-26 04:21:06,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-26 04:21:06,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-26 04:21:06,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-10-26 04:21:06,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:21:06,458 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-26 04:21:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-10-26 04:21:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-26 04:21:06,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-26 04:21:06,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-10-26 04:21:06,494 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-26 04:21:06,495 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-26 04:21:06,495 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:21:06,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-10-26 04:21:06,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-26 04:21:06,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:21:06,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:21:06,498 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:21:06,499 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:21:06,500 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 53#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 49#L565 assume !(main_~length1~0 < 1); 50#L565-2 assume !(main_~length2~0 < 1); 48#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 44#L552-4 [2020-10-26 04:21:06,500 INFO L796 eck$LassoCheckResult]: Loop: 44#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 45#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 56#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 51#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 52#L555-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5; 55#L555-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 46#L557 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 47#L552-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 44#L552-4 [2020-10-26 04:21:06,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:06,502 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-10-26 04:21:06,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:06,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417809725] [2020-10-26 04:21:06,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,603 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:06,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2020-10-26 04:21:06,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:06,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880607741] [2020-10-26 04:21:06,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:06,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:06,643 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2020-10-26 04:21:06,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:06,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749129622] [2020-10-26 04:21:06,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:06,732 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:06,749 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:06,977 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-10-26 04:21:07,412 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-10-26 04:21:07,548 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-26 04:21:07,562 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:21:07,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:21:07,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:21:07,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:21:07,565 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:21:07,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:07,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:21:07,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:21:07,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-2.i_Iteration2_Lasso [2020-10-26 04:21:07,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:21:07,571 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:21:07,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:07,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:07,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:07,969 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-26 04:21:08,167 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-26 04:21:08,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:08,977 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2020-10-26 04:21:09,162 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:21:09,168 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) [2020-10-26 04:21:09,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:09,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:09,201 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 [2020-10-26 04:21:09,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:09,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:09,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:09,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:09,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:09,366 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,422 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,430 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:09,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:09,510 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) [2020-10-26 04:21:09,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:09,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,553 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2020-10-26 04:21:09,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,563 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-26 04:21:09,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:09,621 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) [2020-10-26 04:21:09,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:09,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:09,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:09,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,715 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:09,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:09,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:09,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:09,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:09,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:09,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:09,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:09,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:09,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:21:09,908 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-10-26 04:21:09,908 INFO L444 ModelExtractionUtils]: 7 out of 28 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:09,916 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:09,920 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-26 04:21:09,921 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:21:09,921 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [1*ULTIMATE.start_main_~length1~0 - 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 >= 0] [2020-10-26 04:21:10,102 INFO L297 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2020-10-26 04:21:10,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:10,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 04:21:10,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:10,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-26 04:21:10,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:10,266 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 04:21:10,266 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-26 04:21:10,355 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2020-10-26 04:21:10,356 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 [2020-10-26 04:21:10,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:21:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-10-26 04:21:10,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2020-10-26 04:21:10,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:10,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2020-10-26 04:21:10,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:10,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2020-10-26 04:21:10,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:10,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-10-26 04:21:10,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:21:10,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2020-10-26 04:21:10,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-26 04:21:10,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-26 04:21:10,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2020-10-26 04:21:10,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:21:10,367 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 04:21:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2020-10-26 04:21:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-26 04:21:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-26 04:21:10,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-26 04:21:10,372 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 04:21:10,372 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-26 04:21:10,372 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:21:10,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-10-26 04:21:10,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:21:10,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:21:10,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:21:10,374 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:21:10,376 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:21:10,376 INFO L794 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 195#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 189#L565 assume !(main_~length1~0 < 1); 190#L565-2 assume !(main_~length2~0 < 1); 188#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 182#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 184#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 197#L555-5 [2020-10-26 04:21:10,376 INFO L796 eck$LassoCheckResult]: Loop: 197#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 191#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 192#L555-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 197#L555-5 [2020-10-26 04:21:10,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:10,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2020-10-26 04:21:10,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:10,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714072003] [2020-10-26 04:21:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:10,395 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:10,423 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:10,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:10,442 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2020-10-26 04:21:10,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:10,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959365068] [2020-10-26 04:21:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:10,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:10,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:10,470 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2020-10-26 04:21:10,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:10,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275073690] [2020-10-26 04:21:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:10,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:10,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:10,520 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:11,093 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 97 [2020-10-26 04:21:11,258 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-26 04:21:11,261 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:21:11,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:21:11,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:21:11,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:21:11,261 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:21:11,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:11,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:21:11,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:21:11,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-2.i_Iteration3_Lasso [2020-10-26 04:21:11,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:21:11,262 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:21:11,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:11,767 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-10-26 04:21:11,914 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-26 04:21:12,118 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-26 04:21:12,509 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-26 04:21:12,832 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-26 04:21:12,923 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:21:12,927 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:12,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:12,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:12,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:12,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:12,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:12,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:12,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:12,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:12,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:12,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:12,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:12,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:12,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:12,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:12,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:12,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:12,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:12,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:12,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:12,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:12,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:12,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:12,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:12,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:12,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:12,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:12,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,061 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 [2020-10-26 04:21:13,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,100 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 [2020-10-26 04:21:13,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,136 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 [2020-10-26 04:21:13,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,164 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 [2020-10-26 04:21:13,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,196 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 [2020-10-26 04:21:13,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,222 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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,249 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:13,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,303 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,331 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,358 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:13,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:13,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:13,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:13,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:13,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:13,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:13,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:13,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:13,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:13,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:13,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:13,744 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:21:13,834 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2020-10-26 04:21:13,835 INFO L444 ModelExtractionUtils]: 13 out of 52 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:13,837 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:21:13,839 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-26 04:21:13,839 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:21:13,839 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0.offset, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_cstrcspn_~s~0.offset + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrcspn_~s~0.base)_2 + 1*ULTIMATE.start_main_~length2~0 >= 0] [2020-10-26 04:21:13,920 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2020-10-26 04:21:13,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:13,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-26 04:21:13,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:14,048 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 04:21:14,049 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-26 04:21:14,049 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 04:21:14,073 INFO L625 ElimStorePlain]: treesize reduction 10, result has 61.5 percent of original size [2020-10-26 04:21:14,076 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 04:21:14,076 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:11, output treesize:7 [2020-10-26 04:21:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:14,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:21:14,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:14,128 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 04:21:14,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-26 04:21:14,200 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 43 states and 57 transitions. Complement of second has 6 states. [2020-10-26 04:21:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:21:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:21:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-10-26 04:21:14,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-26 04:21:14,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:14,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-26 04:21:14,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:14,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-26 04:21:14,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:14,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2020-10-26 04:21:14,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:21:14,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2020-10-26 04:21:14,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-26 04:21:14,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-26 04:21:14,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2020-10-26 04:21:14,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:21:14,214 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-26 04:21:14,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2020-10-26 04:21:14,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-10-26 04:21:14,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-26 04:21:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2020-10-26 04:21:14,218 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-10-26 04:21:14,218 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-10-26 04:21:14,218 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 04:21:14,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2020-10-26 04:21:14,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:21:14,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:21:14,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:21:14,221 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:21:14,222 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:21:14,222 INFO L794 eck$LassoCheckResult]: Stem: 381#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 380#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 374#L565 assume !(main_~length1~0 < 1); 375#L565-2 assume !(main_~length2~0 < 1); 373#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 366#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 367#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 383#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 388#L555-1 assume !cstrcspn_#t~short7; 387#L555-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5; 386#L555-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 371#L557 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 372#L552-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 368#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 370#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 382#L555-5 [2020-10-26 04:21:14,222 INFO L796 eck$LassoCheckResult]: Loop: 382#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 376#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 377#L555-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 382#L555-5 [2020-10-26 04:21:14,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:14,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2020-10-26 04:21:14,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:14,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670742454] [2020-10-26 04:21:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:14,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:14,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:14,309 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:14,313 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2020-10-26 04:21:14,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:14,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522481474] [2020-10-26 04:21:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:14,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:14,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:14,334 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2020-10-26 04:21:14,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:14,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455673048] [2020-10-26 04:21:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:14,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455673048] [2020-10-26 04:21:14,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028760112] [2020-10-26 04:21:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 04:21:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:14,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-26 04:21:14,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:14,600 INFO L350 Elim1Store]: treesize reduction 38, result has 20.8 percent of original size [2020-10-26 04:21:14,600 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 20 [2020-10-26 04:21:14,601 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 04:21:14,609 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 04:21:14,612 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-26 04:21:14,612 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:39, output treesize:23 [2020-10-26 04:21:15,060 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-26 04:21:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:15,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 04:21:15,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-10-26 04:21:15,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749292646] [2020-10-26 04:21:15,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:21:15,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 04:21:15,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 04:21:15,196 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 12 states. [2020-10-26 04:21:15,471 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 25 [2020-10-26 04:21:15,681 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 16 [2020-10-26 04:21:16,019 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 13 [2020-10-26 04:21:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:21:16,272 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2020-10-26 04:21:16,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 04:21:16,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2020-10-26 04:21:16,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:21:16,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2020-10-26 04:21:16,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-26 04:21:16,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-26 04:21:16,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2020-10-26 04:21:16,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:21:16,286 INFO L691 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2020-10-26 04:21:16,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2020-10-26 04:21:16,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2020-10-26 04:21:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-26 04:21:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-26 04:21:16,290 INFO L714 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-26 04:21:16,290 INFO L594 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-26 04:21:16,290 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 04:21:16,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2020-10-26 04:21:16,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:21:16,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:21:16,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:21:16,292 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:21:16,292 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:21:16,292 INFO L794 eck$LassoCheckResult]: Stem: 541#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 540#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 534#L565 assume !(main_~length1~0 < 1); 535#L565-2 assume !(main_~length2~0 < 1); 533#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 526#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 527#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 545#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 538#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 539#L555-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5; 548#L555-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 531#L557 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 532#L552-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 528#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 530#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 542#L555-5 [2020-10-26 04:21:16,292 INFO L796 eck$LassoCheckResult]: Loop: 542#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 536#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 537#L555-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 542#L555-5 [2020-10-26 04:21:16,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:16,293 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2020-10-26 04:21:16,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:16,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139863771] [2020-10-26 04:21:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:16,310 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:16,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:16,330 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:16,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:16,331 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2020-10-26 04:21:16,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:16,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027602295] [2020-10-26 04:21:16,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:16,336 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:16,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:16,341 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:16,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:16,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2020-10-26 04:21:16,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:21:16,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620662599] [2020-10-26 04:21:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:21:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:16,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:21:16,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:21:16,399 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:21:17,354 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 139 [2020-10-26 04:21:17,661 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-26 04:21:17,663 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:21:17,664 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:21:17,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:21:17,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:21:17,664 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:21:17,664 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:17,664 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:21:17,664 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:21:17,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-2.i_Iteration5_Lasso [2020-10-26 04:21:17,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:21:17,664 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:21:17,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:17,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,196 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2020-10-26 04:21:19,409 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-26 04:21:19,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:21:19,661 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-26 04:21:20,036 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-10-26 04:21:21,041 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-10-26 04:21:21,309 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-26 04:21:21,612 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:21:21,612 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:21,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:21,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:21,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:21,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:21,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:21,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:21,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:21,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:21,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:21,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:21,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:21,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:21,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:21,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:21,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:21,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:21,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:21,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:21,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:21,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:21:21,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:21:21,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:21:21,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,857 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:21,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:21,861 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,884 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 [2020-10-26 04:21:21,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:21,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:21,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:21,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:21,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:21,890 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:21,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:21,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:21,915 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2020-10-26 04:21:21,915 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-10-26 04:21:21,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:22,066 INFO L401 nArgumentSynthesizer]: We have 180 Motzkin's Theorem applications. [2020-10-26 04:21:22,066 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-10-26 04:21:22,367 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:22,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:22,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:22,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:22,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:22,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:22,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:22,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:22,413 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:22,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:22,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:22,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:22,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:22,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:22,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:22,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:22,443 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:22,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:22,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:22,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:22,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:22,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:22,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:22,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:22,514 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:22,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:22,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:22,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:22,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:22,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:21:22,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:22,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:22,570 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:22,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:21:22,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:21:22,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:21:22,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:21:22,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:22,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:21:22,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:21:22,708 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:21:22,886 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-10-26 04:21:22,886 INFO L444 ModelExtractionUtils]: 11 out of 55 variables were initially zero. Simplification set additionally 41 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:21:22,889 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:21:22,892 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:21:22,893 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:21:22,893 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2020-10-26 04:21:23,101 INFO L297 tatePredicateManager]: 27 out of 28 supporting invariants were superfluous and have been removed [2020-10-26 04:21:23,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:21:23,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:23,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:21:23,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:23,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:21:23,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:23,223 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 04:21:23,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-26 04:21:23,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 46 states and 58 transitions. Complement of second has 6 states. [2020-10-26 04:21:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:21:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:21:23,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-10-26 04:21:23,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-26 04:21:23,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:23,289 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 04:21:23,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:23,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:21:23,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:23,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:21:23,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:23,443 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 04:21:23,443 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-26 04:21:23,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 46 states and 58 transitions. Complement of second has 6 states. [2020-10-26 04:21:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:21:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:21:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-10-26 04:21:23,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-26 04:21:23,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:23,514 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-26 04:21:23,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:21:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:23,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:21:23,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:21:23,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:21:23,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:21:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:21:23,625 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-26 04:21:23,625 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-26 04:21:23,688 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 45 states and 60 transitions. Complement of second has 5 states. [2020-10-26 04:21:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:21:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:21:23,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-10-26 04:21:23,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-26 04:21:23,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:23,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2020-10-26 04:21:23,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:23,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2020-10-26 04:21:23,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:21:23,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2020-10-26 04:21:23,700 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:21:23,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2020-10-26 04:21:23,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:21:23,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:21:23,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:21:23,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:21:23,701 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:21:23,701 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:21:23,701 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:21:23,701 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 04:21:23,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:21:23,701 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:21:23,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:21:23,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:21:23 BoogieIcfgContainer [2020-10-26 04:21:23,707 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:21:23,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:21:23,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:21:23,708 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:21:23,708 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:21:06" (3/4) ... [2020-10-26 04:21:23,711 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:21:23,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:21:23,712 INFO L168 Benchmark]: Toolchain (without parser) took 18838.69 ms. Allocated memory was 54.5 MB in the beginning and 174.1 MB in the end (delta: 119.5 MB). Free memory was 38.2 MB in the beginning and 115.8 MB in the end (delta: -77.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:21:23,713 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 44.0 MB. Free memory was 29.2 MB in the beginning and 29.1 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:21:23,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.52 ms. Allocated memory is still 54.5 MB. Free memory was 37.6 MB in the beginning and 30.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:21:23,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.84 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 28.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:21:23,714 INFO L168 Benchmark]: Boogie Preprocessor took 37.10 ms. Allocated memory is still 54.5 MB. Free memory was 28.6 MB in the beginning and 27.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:21:23,714 INFO L168 Benchmark]: RCFGBuilder took 450.91 ms. Allocated memory is still 54.5 MB. Free memory was 27.0 MB in the beginning and 25.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:21:23,715 INFO L168 Benchmark]: BuchiAutomizer took 17685.80 ms. Allocated memory was 54.5 MB in the beginning and 174.1 MB in the end (delta: 119.5 MB). Free memory was 24.8 MB in the beginning and 115.8 MB in the end (delta: -91.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:21:23,715 INFO L168 Benchmark]: Witness Printer took 3.72 ms. Allocated memory is still 174.1 MB. Free memory is still 115.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:21:23,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 44.0 MB. Free memory was 29.2 MB in the beginning and 29.1 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 568.52 ms. Allocated memory is still 54.5 MB. Free memory was 37.6 MB in the beginning and 30.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.84 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 28.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.10 ms. Allocated memory is still 54.5 MB. Free memory was 28.6 MB in the beginning and 27.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 450.91 ms. Allocated memory is still 54.5 MB. Free memory was 27.0 MB in the beginning and 25.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 17685.80 ms. Allocated memory was 54.5 MB in the beginning and 174.1 MB in the end (delta: 119.5 MB). Free memory was 24.8 MB in the beginning and 115.8 MB in the end (delta: -91.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.72 ms. Allocated memory is still 174.1 MB. Free memory is still 115.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function length1 + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function -1 * s + length2 and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 15.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 165 SDslu, 96 SDs, 0 SdLazy, 157 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital274 mio100 ax106 hnf99 lsp100 ukn81 mio100 lsp32 div129 bol100 ite100 ukn100 eq170 hnf78 smp91 dnf1041 smp24 tf100 neg94 sie114 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 456ms VariablesStem: 7 VariablesLoop: 4 DisjunctsStem: 8 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 180 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...