./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03de162ccadd41d16dfce723d629801bfe048af4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:44:15,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:44:15,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:44:16,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:44:16,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:44:16,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:44:16,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:44:16,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:44:16,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:44:16,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:44:16,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:44:16,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:44:16,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:44:16,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:44:16,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:44:16,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:44:16,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:44:16,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:44:16,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:44:16,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:44:16,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:44:16,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:44:16,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:44:16,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:44:16,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:44:16,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:44:16,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:44:16,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:44:16,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:44:16,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:44:16,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:44:16,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:44:16,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:44:16,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:44:16,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:44:16,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:44:16,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:44:16,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:44:16,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:44:16,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:44:16,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:44:16,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:44:16,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:44:16,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:44:16,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:44:16,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:44:16,137 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:44:16,138 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:44:16,138 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:44:16,138 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:44:16,138 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:44:16,139 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:44:16,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:44:16,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:44:16,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:44:16,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:44:16,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:44:16,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:44:16,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:44:16,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:44:16,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:44:16,142 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:44:16,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:44:16,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:44:16,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:44:16,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:44:16,143 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:44:16,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:44:16,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:44:16,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:44:16,144 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:44:16,145 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:44:16,146 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03de162ccadd41d16dfce723d629801bfe048af4 [2020-10-20 06:44:16,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:44:16,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:44:16,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:44:16,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:44:16,395 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:44:16,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2020-10-20 06:44:16,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61bc8a8c1/bf3bea553b3b4a78bf376bff0b2fd9fa/FLAG4140e8db6 [2020-10-20 06:44:16,949 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:44:16,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc.i [2020-10-20 06:44:16,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61bc8a8c1/bf3bea553b3b4a78bf376bff0b2fd9fa/FLAG4140e8db6 [2020-10-20 06:44:17,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61bc8a8c1/bf3bea553b3b4a78bf376bff0b2fd9fa [2020-10-20 06:44:17,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:44:17,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:44:17,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:44:17,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:44:17,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:44:17,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293ce597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17, skipping insertion in model container [2020-10-20 06:44:17,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:44:17,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:44:17,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:44:17,624 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:44:17,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:44:17,652 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:44:17,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17 WrapperNode [2020-10-20 06:44:17,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:44:17,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:44:17,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:44:17,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:44:17,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:44:17,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:44:17,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:44:17,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:44:17,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... [2020-10-20 06:44:17,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:44:17,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:44:17,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:44:17,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:44:17,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:44:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:44:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:44:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:44:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:44:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure rec_cstrlen [2020-10-20 06:44:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_cstrlen [2020-10-20 06:44:17,962 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:44:17,963 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:44:17,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:44:17 BoogieIcfgContainer [2020-10-20 06:44:17,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:44:17,966 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:44:17,966 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:44:17,970 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:44:17,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:44:17,972 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:44:17" (1/3) ... [2020-10-20 06:44:17,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@339a7718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:44:17, skipping insertion in model container [2020-10-20 06:44:17,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:44:17,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:44:17" (2/3) ... [2020-10-20 06:44:17,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@339a7718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:44:17, skipping insertion in model container [2020-10-20 06:44:17,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:44:17,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:44:17" (3/3) ... [2020-10-20 06:44:17,976 INFO L373 chiAutomizerObserver]: Analyzing ICFG rec_strlen_malloc.i [2020-10-20 06:44:18,038 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:44:18,039 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:44:18,039 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:44:18,039 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:44:18,039 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:44:18,039 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:44:18,040 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:44:18,040 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:44:18,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 06:44:18,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:44:18,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:44:18,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:44:18,111 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:44:18,112 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:44:18,112 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:44:18,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 06:44:18,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:44:18,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:44:18,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:44:18,116 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:44:18,116 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:44:18,125 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~ret5.base, main_#t~ret5.offset, main_#t~ret6;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet1, build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet1;havoc build_nondet_String_#t~nondet1; 12#L11true assume !(build_nondet_String_~length~0 < 1); 9#L11-2true call build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 3#L16true main_#t~ret5.base, main_#t~ret5.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset; 8#L30true call main_#t~ret6 := rec_cstrlen(main_#t~ret5.base, main_#t~ret5.offset);< 4#rec_cstrlenENTRYtrue [2020-10-20 06:44:18,126 INFO L796 eck$LassoCheckResult]: Loop: 4#rec_cstrlenENTRYtrue ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem3 := read~int(~s.base, ~s.offset, 1); 14#L22true assume !(0 == #t~mem3);havoc #t~mem3; 18#L25true call #t~ret4 := rec_cstrlen(~s.base, 1 + ~s.offset);< 4#rec_cstrlenENTRYtrue [2020-10-20 06:44:18,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:44:18,134 INFO L82 PathProgramCache]: Analyzing trace with hash 889568275, now seen corresponding path program 1 times [2020-10-20 06:44:18,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:44:18,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639600212] [2020-10-20 06:44:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:44:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:44:18,271 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:44:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:44:18,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:44:18,318 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:44:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:44:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2020-10-20 06:44:18,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:44:18,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713991336] [2020-10-20 06:44:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:44:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:44:18,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:44:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:44:18,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:44:18,341 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:44:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:44:18,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1180281220, now seen corresponding path program 1 times [2020-10-20 06:44:18,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:44:18,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779725611] [2020-10-20 06:44:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:44:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:44:18,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:44:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:44:18,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:44:18,421 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:44:18,770 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-20 06:44:18,991 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:44:18,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:44:18,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:44:18,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:44:18,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:44:18,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:18,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:44:18,994 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:44:18,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen_malloc.i_Iteration1_Lasso [2020-10-20 06:44:18,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:44:18,994 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:44:19,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:44:19,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:44:19,418 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:44:19,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:44:19,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,498 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) [2020-10-20 06:44:19,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:44:19,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:44:19,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:44:19,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:44:19,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:19,757 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) [2020-10-20 06:44:19,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:19,845 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 [2020-10-20 06:44:19,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:19,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:19,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:19,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:19,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:19,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:19,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:19,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:19,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:19,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:19,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:19,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:19,991 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) [2020-10-20 06:44:20,045 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:20,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:20,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:20,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:20,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:20,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:20,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:20,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:20,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:20,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:20,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:44:20,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:44:20,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,120 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 [2020-10-20 06:44:20,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:20,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:20,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:20,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:20,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:44:20,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:20,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:20,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:44:20,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:20,151 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 06:44:20,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:20,159 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:44:20,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:44:20,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:20,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:20,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:20,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:20,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:44:20,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:44:20,211 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:20,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:20,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:20,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:20,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:44:20,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:44:20,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:20,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,302 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 06:44:20,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:20,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:44:20,308 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 06:44:20,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:44:20,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:44:20,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:44:20,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:44:20,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:44:20,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:44:20,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:44:20,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:44:20,365 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:44:20,548 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-10-20 06:44:20,548 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. 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) [2020-10-20 06:44:20,560 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:44:20,564 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:44:20,564 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:44:20,565 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length rec_cstrlen_#in~s.base)_1, rec_cstrlen_#in~s.offset) = 1*v_rep(select #length rec_cstrlen_#in~s.base)_1 - 1*rec_cstrlen_#in~s.offset Supporting invariants [] [2020-10-20 06:44:20,597 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2020-10-20 06:44:20,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:44:20,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:44:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:44:20,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:44:20,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:44:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:44:20,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:44:20,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:44:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:44:20,762 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:44:20,764 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-10-20 06:44:20,865 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 31 states and 36 transitions. Complement of second has 8 states. [2020-10-20 06:44:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:44:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:44:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2020-10-20 06:44:20,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-20 06:44:20,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:44:20,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-20 06:44:20,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:44:20,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2020-10-20 06:44:20,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:44:20,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2020-10-20 06:44:20,878 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:44:20,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-10-20 06:44:20,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:44:20,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:44:20,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:44:20,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:44:20,883 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:44:20,883 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:44:20,883 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:44:20,883 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:44:20,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:44:20,883 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:44:20,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:44:20,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:44:20 BoogieIcfgContainer [2020-10-20 06:44:20,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:44:20,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:44:20,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:44:20,890 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:44:20,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:44:17" (3/4) ... [2020-10-20 06:44:20,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:44:20,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:44:20,896 INFO L168 Benchmark]: Toolchain (without parser) took 3585.64 ms. Allocated memory was 36.7 MB in the beginning and 59.2 MB in the end (delta: 22.5 MB). Free memory was 11.3 MB in the beginning and 29.8 MB in the end (delta: -18.5 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:44:20,896 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 36.7 MB. Free memory is still 15.6 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:44:20,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.83 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 10.4 MB in the beginning and 27.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:44:20,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.46 ms. Allocated memory is still 44.0 MB. Free memory was 27.7 MB in the beginning and 26.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:44:20,899 INFO L168 Benchmark]: Boogie Preprocessor took 20.60 ms. Allocated memory is still 44.0 MB. Free memory was 26.1 MB in the beginning and 24.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:44:20,900 INFO L168 Benchmark]: RCFGBuilder took 257.19 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 24.9 MB in the beginning and 27.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:44:20,901 INFO L168 Benchmark]: BuchiAutomizer took 2923.61 ms. Allocated memory was 46.1 MB in the beginning and 59.2 MB in the end (delta: 13.1 MB). Free memory was 27.0 MB in the beginning and 30.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:44:20,901 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 59.2 MB. Free memory was 30.3 MB in the beginning and 29.8 MB in the end (delta: 551.0 kB). Peak memory consumption was 551.0 kB. Max. memory is 14.3 GB. [2020-10-20 06:44:20,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 36.7 MB. Free memory is still 15.6 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 336.83 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 10.4 MB in the beginning and 27.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 33.46 ms. Allocated memory is still 44.0 MB. Free memory was 27.7 MB in the beginning and 26.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 20.60 ms. Allocated memory is still 44.0 MB. Free memory was 26.1 MB in the beginning and 24.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 257.19 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 24.9 MB in the beginning and 27.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 2923.61 ms. Allocated memory was 46.1 MB in the beginning and 59.2 MB in the end (delta: 13.1 MB). Free memory was 27.0 MB in the beginning and 30.3 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Witness Printer took 4.20 ms. Allocated memory is still 59.2 MB. Free memory was 30.3 MB in the beginning and 29.8 MB in the end (delta: 551.0 kB). Peak memory consumption was 551.0 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital94 mio100 ax100 hnf100 lsp93 ukn63 mio100 lsp48 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 2 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...