./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrspn_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-15/cstrspn_mixed_alloca.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 166940a7dc08b3f52b5b77619febc023b897cf62 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:36:39,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:36:39,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:36:39,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:36:39,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:36:39,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:36:39,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:36:39,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:36:39,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:36:39,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:36:39,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:36:39,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:36:39,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:36:39,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:36:39,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:36:39,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:36:39,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:36:39,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:36:39,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:36:39,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:36:39,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:36:39,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:36:39,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:36:39,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:36:39,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:36:39,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:36:39,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:36:39,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:36:39,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:36:39,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:36:39,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:36:39,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:36:39,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:36:39,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:36:39,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:36:39,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:36:39,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:36:39,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:36:39,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:36:39,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:36:39,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:36:39,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:36:39,696 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:36:39,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:36:39,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:36:39,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:36:39,698 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:36:39,698 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:36:39,699 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:36:39,699 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:36:39,699 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:36:39,699 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:36:39,700 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:36:39,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:36:39,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:36:39,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:36:39,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:36:39,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:36:39,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:36:39,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:36:39,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:36:39,702 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:36:39,702 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:36:39,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:36:39,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:36:39,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:36:39,703 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:36:39,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:36:39,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:36:39,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:36:39,704 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:36:39,705 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:36:39,705 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 -> 166940a7dc08b3f52b5b77619febc023b897cf62 [2019-11-28 20:36:40,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:36:40,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:36:40,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:36:40,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:36:40,107 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:36:40,108 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrspn_mixed_alloca.i [2019-11-28 20:36:40,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ef50536/047bb3989ac34e54aef8a299826f9af9/FLAGcbd1d3fb8 [2019-11-28 20:36:40,767 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:36:40,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrspn_mixed_alloca.i [2019-11-28 20:36:40,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ef50536/047bb3989ac34e54aef8a299826f9af9/FLAGcbd1d3fb8 [2019-11-28 20:36:41,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89ef50536/047bb3989ac34e54aef8a299826f9af9 [2019-11-28 20:36:41,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:36:41,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:36:41,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:36:41,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:36:41,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:36:41,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7f4e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41, skipping insertion in model container [2019-11-28 20:36:41,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:36:41,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:36:41,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:36:41,555 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:36:41,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:36:41,707 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:36:41,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41 WrapperNode [2019-11-28 20:36:41,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:36:41,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:36:41,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:36:41,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:36:41,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:36:41,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:36:41,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:36:41,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:36:41,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (1/1) ... [2019-11-28 20:36:41,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:36:41,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:36:41,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:36:41,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:36:41,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (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 [2019-11-28 20:36:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:36:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:36:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:36:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:36:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:36:41,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:36:42,179 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:36:42,180 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 20:36:42,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:42 BoogieIcfgContainer [2019-11-28 20:36:42,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:36:42,182 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:36:42,182 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:36:42,186 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:36:42,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:42,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:36:41" (1/3) ... [2019-11-28 20:36:42,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@635f2bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:42, skipping insertion in model container [2019-11-28 20:36:42,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:42,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:41" (2/3) ... [2019-11-28 20:36:42,189 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@635f2bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:42, skipping insertion in model container [2019-11-28 20:36:42,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:42,190 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:42" (3/3) ... [2019-11-28 20:36:42,191 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrspn_mixed_alloca.i [2019-11-28 20:36:42,261 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:36:42,262 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:36:42,262 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:36:42,262 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:36:42,263 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:36:42,263 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:36:42,263 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:36:42,263 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:36:42,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 20:36:42,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:42,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:42,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:42,304 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:36:42,304 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:36:42,304 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:36:42,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 20:36:42,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:42,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:42,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:42,307 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:36:42,307 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:36:42,316 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 12#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 9#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(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, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 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~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, 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; 6#L369-4true [2019-11-28 20:36:42,317 INFO L796 eck$LassoCheckResult]: Loop: 6#L369-4true call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 18#L369-1true assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 20#L372-5true assume !true; 4#L372-6true call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 8#L374true assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 5#L369-3true cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 6#L369-4true [2019-11-28 20:36:42,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:42,325 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-28 20:36:42,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:42,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988875259] [2019-11-28 20:36:42,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,532 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:42,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2019-11-28 20:36:42,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:42,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140607040] [2019-11-28 20:36:42,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:42,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:42,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140607040] [2019-11-28 20:36:42,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:36:42,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:36:42,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145704706] [2019-11-28 20:36:42,577 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:36:42,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:36:42,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 20:36:42,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 20:36:42,592 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-11-28 20:36:42,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:36:42,599 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-28 20:36:42,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 20:36:42,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-28 20:36:42,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:42,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2019-11-28 20:36:42,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-28 20:36:42,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-28 20:36:42,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-28 20:36:42,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:36:42,611 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 20:36:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-28 20:36:42,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-28 20:36:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 20:36:42,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-11-28 20:36:42,642 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 20:36:42,642 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 20:36:42,642 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:36:42,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-11-28 20:36:42,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:42,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:42,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:42,644 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:36:42,644 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:42,645 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 50#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 51#L382 assume !(main_~length1~0 < 1); 52#L382-2 assume !(main_~length2~0 < 1); 49#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(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, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 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~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, 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; 47#L369-4 [2019-11-28 20:36:42,645 INFO L796 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 48#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 56#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 53#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 54#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208; 44#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 45#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 46#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 47#L369-4 [2019-11-28 20:36:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:42,646 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2019-11-28 20:36:42,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:42,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018121514] [2019-11-28 20:36:42,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,718 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:42,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2019-11-28 20:36:42,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:42,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045529274] [2019-11-28 20:36:42,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,757 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:42,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:42,760 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2019-11-28 20:36:42,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:42,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936830722] [2019-11-28 20:36:42,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:42,887 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:43,133 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-11-28 20:36:43,474 WARN L192 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-11-28 20:36:43,853 WARN L192 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2019-11-28 20:36:44,007 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-28 20:36:44,020 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:36:44,021 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:36:44,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:36:44,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:36:44,022 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:36:44,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,022 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:36:44,022 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:36:44,022 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_mixed_alloca.i_Iteration2_Lasso [2019-11-28 20:36:44,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:36:44,023 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:36:44,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,425 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-11-28 20:36:44,616 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-11-28 20:36:44,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:44,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:45,305 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2019-11-28 20:36:45,323 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:36:45,329 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) [2019-11-28 20:36:45,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,351 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 [2019-11-28 20:36:45,355 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) [2019-11-28 20:36:45,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,377 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 [2019-11-28 20:36:45,382 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) [2019-11-28 20:36:45,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:45,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:45,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,452 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 [2019-11-28 20:36:45,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:45,478 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 [2019-11-28 20:36:45,496 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 [2019-11-28 20:36:45,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:45,502 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) [2019-11-28 20:36:45,510 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:45,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe 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) [2019-11-28 20:36:45,533 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:45,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:45,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,566 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 [2019-11-28 20:36:45,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:45,585 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:45,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:45,631 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 [2019-11-28 20:36:45,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:45,663 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 [2019-11-28 20:36:45,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:45,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:45,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:45,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:45,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:45,708 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 [2019-11-28 20:36:45,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:45,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:45,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:45,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:45,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:45,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:45,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:45,764 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:36:45,973 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2019-11-28 20:36:45,973 INFO L444 ModelExtractionUtils]: 19 out of 46 variables were initially zero. Simplification set additionally 24 variables to zero. 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) [2019-11-28 20:36:45,982 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:45,988 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:36:45,988 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:36:45,989 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc215.base)_1) = -1*ULTIMATE.start_cstrspn_~sc1~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc215.base)_1 Supporting invariants [] [2019-11-28 20:36:46,033 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2019-11-28 20:36:46,045 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:36:46,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:46,110 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:36:46,112 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:46,130 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 20:36:46,131 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:46,158 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:36:46,159 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-28 20:36:46,248 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2019-11-28 20:36:46,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:36:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2019-11-28 20:36:46,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2019-11-28 20:36:46,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:46,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2019-11-28 20:36:46,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:46,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2019-11-28 20:36:46,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:46,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2019-11-28 20:36:46,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:46,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2019-11-28 20:36:46,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 20:36:46,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 20:36:46,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-11-28 20:36:46,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:36:46,266 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 20:36:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-11-28 20:36:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 20:36:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 20:36:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-11-28 20:36:46,269 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 20:36:46,269 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 20:36:46,269 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:36:46,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-11-28 20:36:46,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:46,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:46,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:46,276 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:46,276 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:36:46,276 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 182#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 183#L382 assume !(main_~length1~0 < 1); 184#L382-2 assume !(main_~length2~0 < 1); 181#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(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, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 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~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, 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#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 180#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 190#L372-5 [2019-11-28 20:36:46,276 INFO L796 eck$LassoCheckResult]: Loop: 190#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 185#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 186#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, cstrspn_#t~post211.offset - 1;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 190#L372-5 [2019-11-28 20:36:46,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:46,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2019-11-28 20:36:46,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:46,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479074763] [2019-11-28 20:36:46,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:46,358 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:46,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:46,358 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2019-11-28 20:36:46,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:46,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235564049] [2019-11-28 20:36:46,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:46,377 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:46,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:46,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2019-11-28 20:36:46,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:46,378 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432787315] [2019-11-28 20:36:46,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:46,460 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:46,656 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-28 20:36:47,021 WARN L192 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2019-11-28 20:36:47,164 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-11-28 20:36:47,167 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:36:47,167 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:36:47,167 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:36:47,167 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:36:47,167 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:36:47,167 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:47,168 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:36:47,168 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:36:47,168 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_mixed_alloca.i_Iteration3_Lasso [2019-11-28 20:36:47,168 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:36:47,168 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:36:47,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,528 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-11-28 20:36:47,682 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-11-28 20:36:47,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,852 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-11-28 20:36:48,416 WARN L192 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-28 20:36:48,514 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:36:48,514 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 20:36:48,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:48,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:48,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:48,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:48,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:48,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:48,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:48,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:48,531 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 [2019-11-28 20:36:48,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:48,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:48,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:48,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:48,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:48,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:48,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:48,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:48,541 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) [2019-11-28 20:36:48,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:48,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:48,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:48,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:48,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:48,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:48,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:48,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:48,558 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 [2019-11-28 20:36:48,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:48,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:48,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:48,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:48,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:48,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:48,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:48,576 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 [2019-11-28 20:36:48,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:48,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:48,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:48,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:48,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:48,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:48,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:48,587 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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:48,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:48,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:48,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:48,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:48,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:48,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:48,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:48,607 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) [2019-11-28 20:36:48,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:48,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:48,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:48,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:48,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:48,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:48,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:48,644 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:36:48,728 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2019-11-28 20:36:48,728 INFO L444 ModelExtractionUtils]: 10 out of 52 variables were initially zero. Simplification set additionally 35 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:48,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:48,737 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 20:36:48,737 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:36:48,737 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0.offset, ULTIMATE.start_main_~length1~0, ULTIMATE.start_cstrspn_~s~0.offset) = 1*ULTIMATE.start_cstrspn_~sc1~0.offset + 1*ULTIMATE.start_main_~length1~0 + 2*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset + 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~length2~0 >= 0] [2019-11-28 20:36:48,795 INFO L297 tatePredicateManager]: 14 out of 16 supporting invariants were superfluous and have been removed [2019-11-28 20:36:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:48,847 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 20:36:48,848 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:48,915 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 20:36:48,915 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:48,938 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-11-28 20:36:48,938 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-11-28 20:36:49,004 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 6 states. Result 37 states and 50 transitions. Complement of second has 7 states. [2019-11-28 20:36:49,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-28 20:36:49,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2019-11-28 20:36:49,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-28 20:36:49,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:49,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-28 20:36:49,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:49,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-28 20:36:49,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:49,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2019-11-28 20:36:49,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:49,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 27 states and 36 transitions. [2019-11-28 20:36:49,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-28 20:36:49,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 20:36:49,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2019-11-28 20:36:49,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:36:49,011 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-28 20:36:49,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2019-11-28 20:36:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-11-28 20:36:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 20:36:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-11-28 20:36:49,014 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-28 20:36:49,014 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-28 20:36:49,014 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:36:49,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2019-11-28 20:36:49,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:49,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:49,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:49,016 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:49,016 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:36:49,016 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 365#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 366#L382 assume !(main_~length1~0 < 1); 367#L382-2 assume !(main_~length2~0 < 1); 364#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(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, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 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~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, 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; 360#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 361#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 377#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 370#L372-1 assume !cstrspn_#t~short210; 371#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208; 356#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 357#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 358#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 359#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 363#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 373#L372-5 [2019-11-28 20:36:49,016 INFO L796 eck$LassoCheckResult]: Loop: 373#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 368#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 369#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, cstrspn_#t~post211.offset - 1;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 373#L372-5 [2019-11-28 20:36:49,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:49,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2019-11-28 20:36:49,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:49,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257537746] [2019-11-28 20:36:49,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:49,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257537746] [2019-11-28 20:36:49,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:36:49,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:36:49,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575268820] [2019-11-28 20:36:49,072 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 20:36:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:49,072 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2019-11-28 20:36:49,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:49,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928092679] [2019-11-28 20:36:49,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,083 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:49,271 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-28 20:36:49,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:36:49,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:36:49,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:36:49,273 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2019-11-28 20:36:49,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:36:49,366 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2019-11-28 20:36:49,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:36:49,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2019-11-28 20:36:49,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:36:49,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2019-11-28 20:36:49,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 20:36:49,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 20:36:49,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2019-11-28 20:36:49,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:36:49,369 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-28 20:36:49,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2019-11-28 20:36:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-28 20:36:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 20:36:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-11-28 20:36:49,372 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-28 20:36:49,372 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-28 20:36:49,372 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 20:36:49,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2019-11-28 20:36:49,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:49,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:49,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:49,374 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:49,374 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:36:49,374 INFO L794 eck$LassoCheckResult]: Stem: 440#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 437#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 438#L382 assume !(main_~length1~0 < 1); 439#L382-2 assume !(main_~length2~0 < 1); 436#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(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, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 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~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, 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; 432#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 433#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 446#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 450#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 449#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208; 428#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 429#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 430#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 431#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 435#L369-1 assume !!(0 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 445#L372-5 [2019-11-28 20:36:49,375 INFO L796 eck$LassoCheckResult]: Loop: 445#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 0 != cstrspn_#t~mem208; 441#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 442#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, cstrspn_#t~post211.offset - 1;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 445#L372-5 [2019-11-28 20:36:49,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:49,375 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2019-11-28 20:36:49,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:49,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644130009] [2019-11-28 20:36:49,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,414 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:49,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:49,414 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2019-11-28 20:36:49,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:49,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031998836] [2019-11-28 20:36:49,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,426 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:49,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:49,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2019-11-28 20:36:49,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:49,427 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272633853] [2019-11-28 20:36:49,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:49,481 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:50,366 WARN L192 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 137 [2019-11-28 20:36:51,600 WARN L192 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2019-11-28 20:36:51,603 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:36:51,603 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:36:51,603 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:36:51,604 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:36:51,604 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:36:51,604 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:51,604 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:36:51,604 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:36:51,604 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_mixed_alloca.i_Iteration5_Lasso [2019-11-28 20:36:51,604 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:36:51,604 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:36:51,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:51,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-28 20:36:52,699 WARN L192 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2019-11-28 20:36:52,854 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-11-28 20:36:52,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:53,134 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-28 20:36:53,827 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2019-11-28 20:36:54,050 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-28 20:36:54,164 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:36:54,164 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,178 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,186 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:54,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:54,199 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 [2019-11-28 20:36:54,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,218 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) [2019-11-28 20:36:54,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,228 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,238 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,243 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,262 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:54,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,272 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:54,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:54,285 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) [2019-11-28 20:36:54,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,296 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) [2019-11-28 20:36:54,302 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,305 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 [2019-11-28 20:36:54,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,315 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 [2019-11-28 20:36:54,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:54,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:54,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:54,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:54,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:54,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:54,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:54,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:54,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:54,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:54,388 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:36:54,415 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-28 20:36:54,415 INFO L444 ModelExtractionUtils]: 19 out of 46 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:54,419 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:36:54,421 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:36:54,422 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:36:54,422 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0.offset) = 2*ULTIMATE.start_cstrspn_~s~0.offset + 1 Supporting invariants [] [2019-11-28 20:36:54,550 INFO L297 tatePredicateManager]: 24 out of 24 supporting invariants were superfluous and have been removed [2019-11-28 20:36:54,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:54,582 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:36:54,583 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:54,593 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:36:54,594 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:54,603 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:36:54,603 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-28 20:36:54,624 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 41 states and 51 transitions. Complement of second has 5 states. [2019-11-28 20:36:54,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:36:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-11-28 20:36:54,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 20:36:54,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:54,626 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:36:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:54,662 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:36:54,664 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:54,670 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:36:54,670 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:54,680 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:36:54,680 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-28 20:36:54,701 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 41 states and 51 transitions. Complement of second has 5 states. [2019-11-28 20:36:54,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:36:54,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-11-28 20:36:54,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 20:36:54,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:54,704 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:36:54,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:54,740 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:36:54,741 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:54,747 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:36:54,748 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:54,757 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 20:36:54,757 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-28 20:36:54,776 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 41 states and 53 transitions. Complement of second has 4 states. [2019-11-28 20:36:54,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:54,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:36:54,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-28 20:36:54,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 20:36:54,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:54,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2019-11-28 20:36:54,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:54,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-28 20:36:54,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:54,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2019-11-28 20:36:54,781 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:36:54,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2019-11-28 20:36:54,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:36:54,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:36:54,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:36:54,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:36:54,782 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:54,782 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:54,782 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:54,782 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 20:36:54,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:36:54,783 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:36:54,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:36:54,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:36:54 BoogieIcfgContainer [2019-11-28 20:36:54,789 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:36:54,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:36:54,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:36:54,790 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:36:54,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:42" (3/4) ... [2019-11-28 20:36:54,793 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:36:54,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:36:54,795 INFO L168 Benchmark]: Toolchain (without parser) took 13757.23 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 352.8 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -133.2 MB). Peak memory consumption was 219.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:54,795 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:54,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:54,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:54,797 INFO L168 Benchmark]: Boogie Preprocessor took 30.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:54,797 INFO L168 Benchmark]: RCFGBuilder took 387.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:54,798 INFO L168 Benchmark]: BuchiAutomizer took 12607.12 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 237.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -25.0 MB). Peak memory consumption was 212.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:54,798 INFO L168 Benchmark]: Witness Printer took 3.69 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:54,801 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 669.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -133.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 387.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12607.12 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 237.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -25.0 MB). Peak memory consumption was 212.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.69 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 sc1 + length1 + 2 * s and consists of 5 locations. One nondeterministic module has affine ranking function 2 * s + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 11.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 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: 111 SDtfs, 105 SDslu, 55 SDs, 0 SdLazy, 96 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital376 mio100 ax100 hnf99 lsp92 ukn74 mio100 lsp39 div114 bol100 ite100 ukn100 eq180 hnf82 smp93 dnf565 smp28 tf100 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...