./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f10d5178d15d886f7ae857469faf20c98bafd5fa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:08:19,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:08:19,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:08:20,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:08:20,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:08:20,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:08:20,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:08:20,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:08:20,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:08:20,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:08:20,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:08:20,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:08:20,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:08:20,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:08:20,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:08:20,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:08:20,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:08:20,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:08:20,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:08:20,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:08:20,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:08:20,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:08:20,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:08:20,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:08:20,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:08:20,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:08:20,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:08:20,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:08:20,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:08:20,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:08:20,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:08:20,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:08:20,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:08:20,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:08:20,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:08:20,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:08:20,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:08:20,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:08:20,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:08:20,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:08:20,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:08:20,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:08:20,107 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:08:20,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:08:20,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:08:20,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:08:20,109 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:08:20,109 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:08:20,109 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:08:20,110 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:08:20,110 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:08:20,110 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:08:20,110 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:08:20,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:08:20,111 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:08:20,111 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:08:20,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:08:20,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:08:20,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:08:20,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:08:20,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:08:20,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:08:20,112 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:08:20,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:08:20,113 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:08:20,113 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:08:20,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:08:20,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:08:20,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:08:20,115 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:08:20,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:08:20,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:08:20,116 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:08:20,118 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:08:20,118 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f10d5178d15d886f7ae857469faf20c98bafd5fa [2019-11-19 20:08:20,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:08:20,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:08:20,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:08:20,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:08:20,479 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:08:20,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-11-19 20:08:20,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473015de8/18a65e29507a4caea30049abb3e1bff5/FLAG53a50f75b [2019-11-19 20:08:21,155 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:08:21,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-11-19 20:08:21,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473015de8/18a65e29507a4caea30049abb3e1bff5/FLAG53a50f75b [2019-11-19 20:08:21,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473015de8/18a65e29507a4caea30049abb3e1bff5 [2019-11-19 20:08:21,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:08:21,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:08:21,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:21,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:08:21,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:08:21,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:21" (1/1) ... [2019-11-19 20:08:21,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388ed80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:21, skipping insertion in model container [2019-11-19 20:08:21,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:21" (1/1) ... [2019-11-19 20:08:21,462 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:08:21,510 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:08:21,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:21,976 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:08:22,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:22,097 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:08:22,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22 WrapperNode [2019-11-19 20:08:22,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:22,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:22,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:08:22,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:08:22,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:22,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:08:22,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:08:22,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:08:22,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:08:22,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:08:22,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:08:22,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:08:22,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (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 [2019-11-19 20:08:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 20:08:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 20:08:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:08:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 20:08:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:08:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:08:22,574 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:08:22,574 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 20:08:22,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:22 BoogieIcfgContainer [2019-11-19 20:08:22,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:08:22,576 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:08:22,577 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:08:22,580 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:08:22,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:22,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:08:21" (1/3) ... [2019-11-19 20:08:22,582 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@424be208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:22, skipping insertion in model container [2019-11-19 20:08:22,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:22,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (2/3) ... [2019-11-19 20:08:22,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@424be208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:22, skipping insertion in model container [2019-11-19 20:08:22,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:22,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:22" (3/3) ... [2019-11-19 20:08:22,585 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemchr-alloca-2.i [2019-11-19 20:08:22,627 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:08:22,627 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:08:22,627 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:08:22,627 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:08:22,628 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:08:22,628 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:08:22,628 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:08:22,628 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:08:22,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-19 20:08:22,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 20:08:22,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:22,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:22,668 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 20:08:22,668 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:22,668 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:08:22,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-19 20:08:22,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 20:08:22,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:22,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:22,671 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 20:08:22,671 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:22,678 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 17#L529true assume !(main_~length~0 < 1); 20#L529-2true assume !(main_~n~0 < 1); 14#L532-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 8#L537-3true [2019-11-19 20:08:22,678 INFO L796 eck$LassoCheckResult]: Loop: 8#L537-3true assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 7#L537-2true main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 8#L537-3true [2019-11-19 20:08:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:22,684 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-19 20:08:22,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:22,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623573617] [2019-11-19 20:08:22,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,831 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:22,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-19 20:08:22,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:22,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15193976] [2019-11-19 20:08:22,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:22,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:22,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-19 20:08:22,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:22,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054291324] [2019-11-19 20:08:22,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:22,959 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:23,200 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:23,201 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:23,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:23,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:23,202 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:23,202 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:23,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:23,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-2.i_Iteration1_Lasso [2019-11-19 20:08:23,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:23,203 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:23,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:23,779 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:23,785 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,793 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 [2019-11-19 20:08:23,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:23,811 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,824 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 [2019-11-19 20:08:23,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,845 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 [2019-11-19 20:08:23,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,851 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) [2019-11-19 20:08:23,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:23,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,891 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 [2019-11-19 20:08:23,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,898 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] 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 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 [2019-11-19 20:08:23,910 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 [2019-11-19 20:08:23,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:23,930 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 [2019-11-19 20:08:23,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:23,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:23,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:23,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:23,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:23,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,969 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 [2019-11-19 20:08:23,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:23,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:23,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:23,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:23,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:23,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:23,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:23,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:23,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:24,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:24,024 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:24,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:24,039 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) [2019-11-19 20:08:24,058 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 [2019-11-19 20:08:24,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,070 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) [2019-11-19 20:08:24,086 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 [2019-11-19 20:08:24,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:24,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:24,099 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) [2019-11-19 20:08:24,121 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 [2019-11-19 20:08:24,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,135 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 [2019-11-19 20:08:24,155 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 [2019-11-19 20:08:24,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,159 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 20:08:24,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,170 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-19 20:08:24,170 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:24,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:24,198 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 [2019-11-19 20:08:24,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:24,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,216 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) [2019-11-19 20:08:24,236 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 [2019-11-19 20:08:24,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,243 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) [2019-11-19 20:08:24,261 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 [2019-11-19 20:08:24,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:24,271 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,277 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:24,294 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 [2019-11-19 20:08:24,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:24,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,324 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:24,509 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-19 20:08:24,509 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:24,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,524 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:24,524 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:24,525 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nondetArea~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~nondetArea~0.offset Supporting invariants [] [2019-11-19 20:08:24,553 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-19 20:08:24,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:08:24,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:24,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 20:08:24,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:24,653 WARN L253 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 20:08:24,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:24,701 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 [2019-11-19 20:08:24,702 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2019-11-19 20:08:24,825 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 39 states and 56 transitions. Complement of second has 8 states. [2019-11-19 20:08:24,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 20:08:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 20:08:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2019-11-19 20:08:24,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-19 20:08:24,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:24,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 20:08:24,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:24,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-19 20:08:24,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:24,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 56 transitions. [2019-11-19 20:08:24,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 20:08:24,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 14 states and 18 transitions. [2019-11-19 20:08:24,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-19 20:08:24,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-19 20:08:24,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2019-11-19 20:08:24,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:24,848 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-11-19 20:08:24,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2019-11-19 20:08:24,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-19 20:08:24,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 20:08:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2019-11-19 20:08:24,879 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-11-19 20:08:24,879 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-11-19 20:08:24,880 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:08:24,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2019-11-19 20:08:24,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 20:08:24,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:24,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:24,882 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:24,882 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 20:08:24,883 INFO L794 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 131#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 132#L529 assume !(main_~length~0 < 1); 136#L529-2 assume !(main_~n~0 < 1); 134#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 129#L537-3 assume !(main_~i~0 < main_~n~0); 130#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 125#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 124#L518-4 [2019-11-19 20:08:24,883 INFO L796 eck$LassoCheckResult]: Loop: 124#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 126#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~mem4;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset; 135#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 123#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 124#L518-4 [2019-11-19 20:08:24,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,884 INFO L82 PathProgramCache]: Analyzing trace with hash 180430706, now seen corresponding path program 1 times [2019-11-19 20:08:24,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214711333] [2019-11-19 20:08:24,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:24,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:24,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214711333] [2019-11-19 20:08:24,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:08:24,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:08:24,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078469179] [2019-11-19 20:08:24,960 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:08:24,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:24,961 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 1 times [2019-11-19 20:08:24,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:24,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365154552] [2019-11-19 20:08:24,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:24,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:25,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:25,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 20:08:25,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:08:25,114 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand 4 states. [2019-11-19 20:08:25,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:25,157 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-11-19 20:08:25,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 20:08:25,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-19 20:08:25,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 20:08:25,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2019-11-19 20:08:25,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-19 20:08:25,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-19 20:08:25,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2019-11-19 20:08:25,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:25,163 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-19 20:08:25,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2019-11-19 20:08:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-11-19 20:08:25,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-19 20:08:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-19 20:08:25,168 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 20:08:25,168 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-19 20:08:25,168 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:08:25,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2019-11-19 20:08:25,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 20:08:25,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:25,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:25,170 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:25,172 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 20:08:25,172 INFO L794 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 167#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 168#L529 assume !(main_~length~0 < 1); 172#L529-2 assume !(main_~n~0 < 1); 170#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 165#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 163#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 164#L537-3 assume !(main_~i~0 < main_~n~0); 166#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 159#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 160#L518-4 [2019-11-19 20:08:25,173 INFO L796 eck$LassoCheckResult]: Loop: 160#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 162#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~mem4;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset; 171#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 161#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 160#L518-4 [2019-11-19 20:08:25,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:25,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1596934864, now seen corresponding path program 1 times [2019-11-19 20:08:25,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:25,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894754821] [2019-11-19 20:08:25,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:25,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:25,245 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 2 times [2019-11-19 20:08:25,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:25,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254745984] [2019-11-19 20:08:25,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:25,275 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:25,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:25,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1308516218, now seen corresponding path program 1 times [2019-11-19 20:08:25,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:25,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460848426] [2019-11-19 20:08:25,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:25,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460848426] [2019-11-19 20:08:25,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300227241] [2019-11-19 20:08:25,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:08:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:25,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-19 20:08:25,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:25,561 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-19 20:08:25,561 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:25,572 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:25,572 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:25,573 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-19 20:08:25,710 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-11-19 20:08:25,710 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:25,719 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:25,719 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:25,720 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:7 [2019-11-19 20:08:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:25,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 20:08:25,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-11-19 20:08:25,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348493743] [2019-11-19 20:08:25,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:25,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-19 20:08:25,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-11-19 20:08:25,823 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 14 states. [2019-11-19 20:08:26,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:26,260 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-11-19 20:08:26,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-19 20:08:26,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 32 transitions. [2019-11-19 20:08:26,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 20:08:26,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 17 states and 19 transitions. [2019-11-19 20:08:26,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-19 20:08:26,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-19 20:08:26,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2019-11-19 20:08:26,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:26,267 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-19 20:08:26,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2019-11-19 20:08:26,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-19 20:08:26,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-19 20:08:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-19 20:08:26,270 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-19 20:08:26,270 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-19 20:08:26,270 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:08:26,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2019-11-19 20:08:26,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 20:08:26,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:26,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:26,272 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:26,272 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 20:08:26,273 INFO L794 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 284#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 285#L529 assume !(main_~length~0 < 1); 289#L529-2 assume !(main_~n~0 < 1); 287#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 281#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 279#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 280#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 282#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 290#L537-3 assume !(main_~i~0 < main_~n~0); 283#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 275#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 276#L518-4 [2019-11-19 20:08:26,273 INFO L796 eck$LassoCheckResult]: Loop: 276#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 278#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~mem4;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset; 288#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 277#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 276#L518-4 [2019-11-19 20:08:26,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1352797870, now seen corresponding path program 2 times [2019-11-19 20:08:26,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,276 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553387130] [2019-11-19 20:08:26,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,354 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 3 times [2019-11-19 20:08:26,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234409741] [2019-11-19 20:08:26,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,372 INFO L82 PathProgramCache]: Analyzing trace with hash -24116136, now seen corresponding path program 2 times [2019-11-19 20:08:26,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47392301] [2019-11-19 20:08:26,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,447 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,838 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2019-11-19 20:08:26,927 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:26,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:26,928 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:26,928 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:26,928 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:26,928 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:26,928 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:26,928 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:26,928 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-2.i_Iteration4_Lasso [2019-11-19 20:08:26,928 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:26,929 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:26,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,164 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-11-19 20:08:27,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:28,005 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2019-11-19 20:08:28,022 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:28,022 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-19 20:08:28,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:28,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,039 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 [2019-11-19 20:08:28,042 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) [2019-11-19 20:08:28,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:28,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,058 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) [2019-11-19 20:08:28,068 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 [2019-11-19 20:08:28,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:28,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,078 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) [2019-11-19 20:08:28,087 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 [2019-11-19 20:08:28,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,093 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) [2019-11-19 20:08:28,105 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 [2019-11-19 20:08:28,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:28,120 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 [2019-11-19 20:08:28,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:28,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:28,138 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 [2019-11-19 20:08:28,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,144 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) [2019-11-19 20:08:28,153 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 [2019-11-19 20:08:28,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,160 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) [2019-11-19 20:08:28,167 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 [2019-11-19 20:08:28,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,173 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) [2019-11-19 20:08:28,182 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 [2019-11-19 20:08:28,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,188 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) [2019-11-19 20:08:28,196 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 [2019-11-19 20:08:28,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:28,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:28,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:28,232 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 [2019-11-19 20:08:28,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,238 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) [2019-11-19 20:08:28,250 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 [2019-11-19 20:08:28,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,256 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) [2019-11-19 20:08:28,263 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 [2019-11-19 20:08:28,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,281 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 [2019-11-19 20:08:28,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:28,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:28,296 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:28,308 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 [2019-11-19 20:08:28,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:28,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:28,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,312 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) [2019-11-19 20:08:28,320 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 Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:28,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:28,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:28,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:28,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:28,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:28,354 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:28,378 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-19 20:08:28,378 INFO L444 ModelExtractionUtils]: 24 out of 37 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:28,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:28,391 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:28,391 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:28,391 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2, ULTIMATE.start_cmemchr_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2 - 1*ULTIMATE.start_cmemchr_~p~0.offset Supporting invariants [] [2019-11-19 20:08:28,403 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-19 20:08:28,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:08:28,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:28,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:08:28,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:28,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 20:08:28,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:28,523 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-19 20:08:28,523 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand 5 states. [2019-11-19 20:08:28,584 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 20 states and 22 transitions. Complement of second has 6 states. [2019-11-19 20:08:28,585 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 [2019-11-19 20:08:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:08:28,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2019-11-19 20:08:28,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-19 20:08:28,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:28,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2019-11-19 20:08:28,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:28,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2019-11-19 20:08:28,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:28,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2019-11-19 20:08:28,589 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:08:28,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-11-19 20:08:28,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 20:08:28,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 20:08:28,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 20:08:28,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:28,590 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:08:28,590 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:08:28,590 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:08:28,590 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 20:08:28,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 20:08:28,590 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:08:28,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 20:08:28,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:08:28 BoogieIcfgContainer [2019-11-19 20:08:28,597 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:08:28,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:08:28,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:08:28,597 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:08:28,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:22" (3/4) ... [2019-11-19 20:08:28,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 20:08:28,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:08:28,603 INFO L168 Benchmark]: Toolchain (without parser) took 7160.44 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 320.9 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -280.8 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:28,603 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-19 20:08:28,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:28,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:28,605 INFO L168 Benchmark]: Boogie Preprocessor took 28.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:28,606 INFO L168 Benchmark]: RCFGBuilder took 394.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:28,606 INFO L168 Benchmark]: BuchiAutomizer took 6020.19 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -158.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-11-19 20:08:28,607 INFO L168 Benchmark]: Witness Printer took 4.49 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:08:28,610 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 654.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 394.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6020.19 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 192.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -158.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.49 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] + -1 * i + -1 * nondetArea and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] + -1 * p and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 45 SDtfs, 94 SDslu, 106 SDs, 0 SdLazy, 130 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital127 mio100 ax114 hnf98 lsp80 ukn84 mio100 lsp57 div127 bol100 ite100 ukn100 eq173 hnf81 smp97 dnf100 smp100 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...