./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/cstrspn-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/cstrspn-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 5bb7c0b0be083ae28de17688b83fb766e3f101f5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:39:45,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:39:45,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:39:45,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:39:45,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:39:45,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:39:45,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:39:45,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:39:45,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:39:45,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:39:45,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:39:45,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:39:45,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:39:45,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:39:45,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:39:45,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:39:45,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:39:45,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:39:45,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:39:45,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:39:45,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:39:45,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:39:45,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:39:45,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:39:45,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:39:45,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:39:45,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:39:45,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:39:45,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:39:45,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:39:45,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:39:45,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:39:45,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:39:45,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:39:45,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:39:45,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:39:45,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:39:45,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:39:45,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:39:45,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:39:45,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:39:45,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:39:45,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:39:45,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:39:45,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:39:45,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:39:45,637 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:39:45,637 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:39:45,637 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:39:45,638 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:39:45,638 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:39:45,638 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:39:45,639 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:39:45,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:39:45,640 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:39:45,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:39:45,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:39:45,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:39:45,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:39:45,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:39:45,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:39:45,642 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:39:45,643 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:39:45,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:39:45,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:39:45,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:39:45,644 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:39:45,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:39:45,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:39:45,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:39:45,645 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:39:45,646 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:39:45,646 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb7c0b0be083ae28de17688b83fb766e3f101f5 [2020-10-20 06:39:45,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:39:45,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:39:45,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:39:45,923 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:39:45,924 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:39:45,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/cstrspn-alloca-2.i [2020-10-20 06:39:46,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75884cec/a0328bd9e58242988d244bf297a90f23/FLAGaa400f42d [2020-10-20 06:39:46,654 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:39:46,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/cstrspn-alloca-2.i [2020-10-20 06:39:46,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75884cec/a0328bd9e58242988d244bf297a90f23/FLAGaa400f42d [2020-10-20 06:39:46,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75884cec/a0328bd9e58242988d244bf297a90f23 [2020-10-20 06:39:46,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:39:46,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:39:46,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:39:46,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:39:46,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:39:46,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:39:46" (1/1) ... [2020-10-20 06:39:46,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce49abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:46, skipping insertion in model container [2020-10-20 06:39:46,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:39:46" (1/1) ... [2020-10-20 06:39:46,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:39:46,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:39:47,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:39:47,309 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:39:47,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:39:47,459 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:39:47,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47 WrapperNode [2020-10-20 06:39:47,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:39:47,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:39:47,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:39:47,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:39:47,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:39:47,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:39:47,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:39:47,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:39:47,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (1/1) ... [2020-10-20 06:39:47,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:39:47,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:39:47,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:39:47,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:39:47,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (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 [2020-10-20 06:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:39:47,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:39:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:39:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:39:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:39:47,967 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:39:47,968 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 06:39:47,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:39:47 BoogieIcfgContainer [2020-10-20 06:39:47,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:39:47,970 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:39:47,970 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:39:47,974 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:39:47,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:39:47,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:39:46" (1/3) ... [2020-10-20 06:39:47,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e7917b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:39:47, skipping insertion in model container [2020-10-20 06:39:47,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:39:47,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:39:47" (2/3) ... [2020-10-20 06:39:47,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e7917b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:39:47, skipping insertion in model container [2020-10-20 06:39:47,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:39:47,978 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:39:47" (3/3) ... [2020-10-20 06:39:47,979 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrspn-alloca-2.i [2020-10-20 06:39:48,035 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:39:48,039 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:39:48,039 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:39:48,039 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:39:48,039 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:39:48,040 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:39:48,041 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:39:48,041 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:39:48,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-20 06:39:48,087 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-20 06:39:48,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:48,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:48,094 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:39:48,094 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:39:48,094 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:39:48,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-20 06:39:48,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-20 06:39:48,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:48,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:48,106 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:39:48,107 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:39:48,115 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 3#L552-4true [2020-10-20 06:39:48,116 INFO L796 eck$LassoCheckResult]: Loop: 3#L552-4true call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 14#L552-1true assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 16#L555-5true assume !true; 19#L555-6true call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 5#L557true assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 20#L552-3true cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 3#L552-4true [2020-10-20 06:39:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-10-20 06:39:48,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:48,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453532641] [2020-10-20 06:39:48,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:48,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:48,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2020-10-20 06:39:48,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:48,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964672507] [2020-10-20 06:39:48,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:39:48,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964672507] [2020-10-20 06:39:48,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:39:48,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:39:48,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123243952] [2020-10-20 06:39:48,354 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:39:48,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:39:48,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 06:39:48,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:39:48,368 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-20 06:39:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:39:48,375 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-10-20 06:39:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 06:39:48,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-10-20 06:39:48,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-20 06:39:48,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2020-10-20 06:39:48,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-20 06:39:48,385 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-20 06:39:48,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-10-20 06:39:48,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:39:48,387 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 06:39:48,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-10-20 06:39:48,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-20 06:39:48,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 06:39:48,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-10-20 06:39:48,411 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 06:39:48,411 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 06:39:48,411 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:39:48,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-10-20 06:39:48,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-20 06:39:48,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:48,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:48,413 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:39:48,413 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:39:48,413 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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 44#L552-4 [2020-10-20 06:39:48,414 INFO L796 eck$LassoCheckResult]: Loop: 44#L552-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 45#L552-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 56#L555-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 51#L555-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 52#L555-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem6;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7; 55#L555-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 46#L557 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 47#L552-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 44#L552-4 [2020-10-20 06:39:48,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:48,414 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-10-20 06:39:48,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:48,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281893003] [2020-10-20 06:39:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,470 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:48,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2020-10-20 06:39:48,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:48,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008016510] [2020-10-20 06:39:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,530 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:48,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:48,531 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2020-10-20 06:39:48,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:48,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007898969] [2020-10-20 06:39:48,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:48,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:48,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:48,886 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-10-20 06:39:49,341 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2020-10-20 06:39:49,479 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-20 06:39:49,493 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:39:49,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:39:49,495 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:39:49,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:39:49,495 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:39:49,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:49,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:39:49,503 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:39:49,503 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-2.i_Iteration2_Lasso [2020-10-20 06:39:49,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:39:49,504 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:39:49,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:49,980 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-10-20 06:39:50,178 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-20 06:39:50,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:50,833 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 28 [2020-10-20 06:39:50,876 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:39:50,882 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) [2020-10-20 06:39:50,901 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 [2020-10-20 06:39:50,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:50,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:50,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:50,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:50,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:50,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:50,908 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 [2020-10-20 06:39:50,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:39:50,956 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 [2020-10-20 06:39:50,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:50,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:50,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:50,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:50,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:50,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:50,973 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 [2020-10-20 06:39:51,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:51,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:51,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:51,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:51,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:39:51,060 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:51,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:51,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:51,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:51,065 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 [2020-10-20 06:39:51,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:51,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:51,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:51,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:51,101 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 [2020-10-20 06:39:51,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:51,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:51,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:51,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:51,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:51,173 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 [2020-10-20 06:39:51,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:51,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:51,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:51,186 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 [2020-10-20 06:39:51,225 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 [2020-10-20 06:39:51,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:51,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:51,238 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) [2020-10-20 06:39:51,270 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 [2020-10-20 06:39:51,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:51,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:51,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 10 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:51,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:51,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:51,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:51,323 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 [2020-10-20 06:39:51,349 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 [2020-10-20 06:39:51,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:51,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:51,380 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) [2020-10-20 06:39:51,427 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 [2020-10-20 06:39:51,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:51,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:51,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:39:51,496 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 [2020-10-20 06:39:51,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:51,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:51,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:51,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:51,539 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 [2020-10-20 06:39:51,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:51,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:51,547 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 [2020-10-20 06:39:51,575 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 [2020-10-20 06:39:51,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:51,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:51,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:51,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:51,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:51,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:51,601 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:39:51,643 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-20 06:39:51,644 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. 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 [2020-10-20 06:39:51,653 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:39:51,693 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:39:51,694 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:39:51,695 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1) = -1*ULTIMATE.start_cstrspn_~sc1~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 Supporting invariants [] [2020-10-20 06:39:51,812 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-10-20 06:39:51,822 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:39:51,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:51,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:39:51,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:39:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:51,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:39:51,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:39:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:39:51,951 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 [2020-10-20 06:39:51,952 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-20 06:39:52,028 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. [2020-10-20 06:39:52,029 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 [2020-10-20 06:39:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:39:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-10-20 06:39:52,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2020-10-20 06:39:52,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:52,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2020-10-20 06:39:52,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:52,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2020-10-20 06:39:52,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:52,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-10-20 06:39:52,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:39:52,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2020-10-20 06:39:52,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-20 06:39:52,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-20 06:39:52,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2020-10-20 06:39:52,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:39:52,038 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-20 06:39:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2020-10-20 06:39:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-20 06:39:52,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 06:39:52,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-20 06:39:52,041 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-20 06:39:52,041 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-20 06:39:52,041 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:39:52,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-10-20 06:39:52,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:39:52,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:52,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:52,042 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:39:52,043 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:39:52,043 INFO L794 eck$LassoCheckResult]: Stem: 192#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 191#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; 185#L565 assume !(main_~length1~0 < 1); 186#L565-2 assume !(main_~length2~0 < 1); 184#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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 178#L552-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 180#L552-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 193#L555-5 [2020-10-20 06:39:52,043 INFO L796 eck$LassoCheckResult]: Loop: 193#L555-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 187#L555-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 188#L555-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem6;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 193#L555-5 [2020-10-20 06:39:52,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:52,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2020-10-20 06:39:52,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:52,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668042455] [2020-10-20 06:39:52,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:52,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:52,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:52,092 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:52,093 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2020-10-20 06:39:52,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:52,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118081092] [2020-10-20 06:39:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:52,110 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:52,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:52,127 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:52,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2020-10-20 06:39:52,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:52,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797836300] [2020-10-20 06:39:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:52,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:52,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:52,195 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:52,695 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 96 [2020-10-20 06:39:52,843 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-20 06:39:52,846 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:39:52,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:39:52,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:39:52,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:39:52,847 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:39:52,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:52,847 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:39:52,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:39:52,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-2.i_Iteration3_Lasso [2020-10-20 06:39:52,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:39:52,847 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:39:52,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:52,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:52,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:52,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:52,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:52,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:52,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:52,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,210 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-20 06:39:53,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:53,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:54,017 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-20 06:39:54,090 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:39:54,090 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-20 06:39:54,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:54,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:54,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:54,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:54,104 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 [2020-10-20 06:39:54,135 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 [2020-10-20 06:39:54,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:54,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:54,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:54,141 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 [2020-10-20 06:39:54,166 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 [2020-10-20 06:39:54,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:54,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:54,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:54,180 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 [2020-10-20 06:39:54,208 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 [2020-10-20 06:39:54,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:54,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:54,223 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 [2020-10-20 06:39:54,258 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 [2020-10-20 06:39:54,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:54,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:54,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:54,262 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 [2020-10-20 06:39:54,285 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 [2020-10-20 06:39:54,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:54,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:54,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:54,291 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 [2020-10-20 06:39:54,315 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 [2020-10-20 06:39:54,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:54,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:54,321 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 [2020-10-20 06:39:54,344 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 [2020-10-20 06:39:54,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:54,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:54,368 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) [2020-10-20 06:39:54,413 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 [2020-10-20 06:39:54,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:54,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:54,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:54,449 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 [2020-10-20 06:39:54,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:54,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:54,461 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 [2020-10-20 06:39:54,485 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 [2020-10-20 06:39:54,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:54,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:54,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:54,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:54,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:54,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:54,506 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:39:54,540 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-20 06:39:54,540 INFO L444 ModelExtractionUtils]: 9 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:39:54,543 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:54,546 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:39:54,547 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:39:54,547 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrspn_~s~0.base)_2, ULTIMATE.start_cstrspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrspn_~s~0.base)_2 - 1*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [] [2020-10-20 06:39:54,635 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-10-20 06:39:54,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:39:54,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:54,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:39:54,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:39:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:54,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:39:54,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:39:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:39:54,696 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 [2020-10-20 06:39:54,696 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-10-20 06:39:54,719 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 43 states and 57 transitions. Complement of second has 5 states. [2020-10-20 06:39:54,720 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 [2020-10-20 06:39:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:39:54,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2020-10-20 06:39:54,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-20 06:39:54,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:54,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 06:39:54,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:54,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2020-10-20 06:39:54,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:39:54,722 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2020-10-20 06:39:54,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:39:54,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2020-10-20 06:39:54,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-20 06:39:54,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-20 06:39:54,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2020-10-20 06:39:54,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:39:54,726 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-10-20 06:39:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2020-10-20 06:39:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-10-20 06:39:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-20 06:39:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2020-10-20 06:39:54,729 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-10-20 06:39:54,729 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-10-20 06:39:54,729 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:39:54,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2020-10-20 06:39:54,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:39:54,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:54,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:54,731 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:39:54,731 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:39:54,731 INFO L794 eck$LassoCheckResult]: Stem: 357#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 356#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; 350#L565 assume !(main_~length1~0 < 1); 351#L565-2 assume !(main_~length2~0 < 1); 349#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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 342#L552-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 343#L552-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 360#L555-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 365#L555-1 assume !cstrspn_#t~short7; 363#L555-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem6;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7; 362#L555-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 347#L557 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 348#L552-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 344#L552-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 346#L552-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 358#L555-5 [2020-10-20 06:39:54,732 INFO L796 eck$LassoCheckResult]: Loop: 358#L555-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 352#L555-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 353#L555-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem6;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 358#L555-5 [2020-10-20 06:39:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:54,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2020-10-20 06:39:54,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:54,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944925503] [2020-10-20 06:39:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:39:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:39:54,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944925503] [2020-10-20 06:39:54,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:39:54,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:39:54,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334928969] [2020-10-20 06:39:54,824 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:39:54,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:54,824 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2020-10-20 06:39:54,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:54,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387901937] [2020-10-20 06:39:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:54,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:54,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:54,855 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:54,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:39:54,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:39:54,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:39:54,965 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-10-20 06:39:55,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:39:55,061 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-10-20 06:39:55,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:39:55,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2020-10-20 06:39:55,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:39:55,065 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2020-10-20 06:39:55,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-20 06:39:55,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-20 06:39:55,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-10-20 06:39:55,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:39:55,066 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-10-20 06:39:55,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-10-20 06:39:55,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-10-20 06:39:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-20 06:39:55,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2020-10-20 06:39:55,070 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-10-20 06:39:55,070 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-10-20 06:39:55,070 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:39:55,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2020-10-20 06:39:55,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:39:55,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:39:55,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:39:55,082 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:39:55,082 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:39:55,082 INFO L794 eck$LassoCheckResult]: Stem: 429#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 428#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; 422#L565 assume !(main_~length1~0 < 1); 423#L565-2 assume !(main_~length2~0 < 1); 421#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);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 414#L552-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 415#L552-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 431#L555-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 432#L555-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 434#L555-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem6;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7; 433#L555-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 419#L557 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 420#L552-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 416#L552-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 418#L552-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 430#L555-5 [2020-10-20 06:39:55,082 INFO L796 eck$LassoCheckResult]: Loop: 430#L555-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 424#L555-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 425#L555-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem6;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 430#L555-5 [2020-10-20 06:39:55,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:55,083 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2020-10-20 06:39:55,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:55,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048771019] [2020-10-20 06:39:55,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:55,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:55,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:55,162 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:55,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:55,163 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2020-10-20 06:39:55,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:55,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183167598] [2020-10-20 06:39:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:55,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:55,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:55,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:55,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:39:55,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2020-10-20 06:39:55,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:39:55,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647905579] [2020-10-20 06:39:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:39:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:55,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:39:55,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:39:55,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:39:56,042 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 138 [2020-10-20 06:39:56,284 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-20 06:39:56,286 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:39:56,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:39:56,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:39:56,287 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:39:56,287 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:39:56,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:56,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:39:56,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:39:56,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca-2.i_Iteration5_Lasso [2020-10-20 06:39:56,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:39:56,288 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:39:56,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:56,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,473 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2020-10-20 06:39:57,643 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-20 06:39:57,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:39:57,914 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-10-20 06:39:58,108 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-20 06:39:58,660 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-10-20 06:39:58,876 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-10-20 06:39:59,042 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:39:59,042 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,052 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 [2020-10-20 06:39:59,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:59,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:59,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:59,056 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) [2020-10-20 06:39:59,077 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:59,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:59,082 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 [2020-10-20 06:39:59,106 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 [2020-10-20 06:39:59,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:59,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:59,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:59,109 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 [2020-10-20 06:39:59,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:39:59,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:59,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:59,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:59,136 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:39:59,160 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 [2020-10-20 06:39:59,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:59,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:59,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:59,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 34 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 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 [2020-10-20 06:39:59,201 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 [2020-10-20 06:39:59,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:59,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:59,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:59,205 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,230 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 [2020-10-20 06:39:59,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:59,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:59,235 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) [2020-10-20 06:39:59,258 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:59,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:59,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:59,261 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) [2020-10-20 06:39:59,285 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 [2020-10-20 06:39:59,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:59,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:59,290 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 [2020-10-20 06:39:59,315 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 [2020-10-20 06:39:59,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:39:59,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:39:59,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:39:59,323 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,356 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 [2020-10-20 06:39:59,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:59,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:59,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,402 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 [2020-10-20 06:39:59,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,403 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-10-20 06:39:59,403 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-10-20 06:39:59,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,471 INFO L401 nArgumentSynthesizer]: We have 132 Motzkin's Theorem applications. [2020-10-20 06:39:59,471 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-10-20 06:39:59,657 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,681 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 [2020-10-20 06:39:59,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:39:59,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:39:59,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:39:59,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:39:59,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:39:59,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:39:59,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:39:59,814 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-10-20 06:39:59,814 INFO L444 ModelExtractionUtils]: 13 out of 55 variables were initially zero. Simplification set additionally 39 variables to zero. 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) [2020-10-20 06:39:59,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:39:59,827 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:39:59,828 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:39:59,828 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3, ULTIMATE.start_cstrspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 - 1*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [] [2020-10-20 06:40:00,091 INFO L297 tatePredicateManager]: 31 out of 33 supporting invariants were superfluous and have been removed [2020-10-20 06:40:00,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:40:00,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:40:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:00,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:40:00,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:00,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:40:00,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:40:00,217 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 [2020-10-20 06:40:00,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-20 06:40:00,285 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2020-10-20 06:40:00,285 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 [2020-10-20 06:40:00,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:40:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-10-20 06:40:00,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-20 06:40:00,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:00,286 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:40:00,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:40:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:00,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:40:00,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:00,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:40:00,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:00,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:40:00,427 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 [2020-10-20 06:40:00,427 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-20 06:40:00,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2020-10-20 06:40:00,474 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 [2020-10-20 06:40:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:40:00,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-10-20 06:40:00,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-20 06:40:00,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:00,475 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:40:00,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:40:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:00,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:40:00,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:00,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:40:00,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:40:00,572 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 [2020-10-20 06:40:00,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-20 06:40:00,624 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 53 transitions. Complement of second has 5 states. [2020-10-20 06:40:00,625 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 [2020-10-20 06:40:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:40:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-10-20 06:40:00,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2020-10-20 06:40:00,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:00,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2020-10-20 06:40:00,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:00,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2020-10-20 06:40:00,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:00,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2020-10-20 06:40:00,630 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:40:00,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2020-10-20 06:40:00,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:40:00,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:40:00,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:40:00,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:40:00,632 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:40:00,632 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:40:00,632 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:40:00,632 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 06:40:00,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:40:00,632 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:40:00,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:40:00,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:40:00 BoogieIcfgContainer [2020-10-20 06:40:00,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:40:00,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:40:00,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:40:00,642 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:40:00,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:39:47" (3/4) ... [2020-10-20 06:40:00,647 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:40:00,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:40:00,649 INFO L168 Benchmark]: Toolchain (without parser) took 13788.73 ms. Allocated memory was 40.9 MB in the beginning and 102.8 MB in the end (delta: 61.9 MB). Free memory was 19.1 MB in the beginning and 38.5 MB in the end (delta: -19.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,650 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.6 MB in the end (delta: 43.8 kB). Peak memory consumption was 43.8 kB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.65 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 18.2 MB in the beginning and 24.4 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.86 ms. Allocated memory is still 43.5 MB. Free memory was 24.1 MB in the beginning and 22.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,652 INFO L168 Benchmark]: Boogie Preprocessor took 32.92 ms. Allocated memory is still 43.5 MB. Free memory was 22.0 MB in the beginning and 20.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,653 INFO L168 Benchmark]: RCFGBuilder took 422.99 ms. Allocated memory is still 43.5 MB. Free memory was 20.2 MB in the beginning and 16.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,654 INFO L168 Benchmark]: BuchiAutomizer took 12670.94 ms. Allocated memory was 43.5 MB in the beginning and 102.8 MB in the end (delta: 59.2 MB). Free memory was 16.8 MB in the beginning and 39.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,654 INFO L168 Benchmark]: Witness Printer took 5.86 ms. Allocated memory is still 102.8 MB. Free memory was 39.9 MB in the beginning and 38.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:00,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.6 MB in the end (delta: 43.8 kB). Peak memory consumption was 43.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 593.65 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 18.2 MB in the beginning and 24.4 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 51.86 ms. Allocated memory is still 43.5 MB. Free memory was 24.1 MB in the beginning and 22.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 32.92 ms. Allocated memory is still 43.5 MB. Free memory was 22.0 MB in the beginning and 20.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 422.99 ms. Allocated memory is still 43.5 MB. Free memory was 20.2 MB in the beginning and 16.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 12670.94 ms. Allocated memory was 43.5 MB in the beginning and 102.8 MB in the end (delta: 59.2 MB). Free memory was 16.8 MB in the beginning and 39.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 14.3 GB. * Witness Printer took 5.86 ms. Allocated memory is still 102.8 MB. Free memory was 39.9 MB in the beginning and 38.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 -1 * sc1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 11.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 106 SDtfs, 102 SDslu, 67 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital270 mio100 ax106 hnf99 lsp100 ukn81 mio100 lsp27 div144 bol100 ite100 ukn100 eq156 hnf74 smp91 dnf784 smp23 tf100 neg96 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 260ms VariablesStem: 7 VariablesLoop: 4 DisjunctsStem: 4 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 132 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...