./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/id_trans.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loop-invgen/id_trans.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 b2585982366e12850b78353d5a08eef796173b16 ................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:06:14,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:06:14,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:06:15,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:06:15,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:06:15,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:06:15,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:06:15,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:06:15,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:06:15,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:06:15,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:06:15,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:06:15,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:06:15,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:06:15,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:06:15,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:06:15,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:06:15,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:06:15,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:06:15,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:06:15,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:06:15,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:06:15,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:06:15,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:06:15,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:06:15,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:06:15,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:06:15,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:06:15,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:06:15,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:06:15,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:06:15,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:06:15,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:06:15,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:06:15,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:06:15,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:06:15,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:06:15,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:06:15,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:06:15,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:06:15,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:06:15,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:06:15,166 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:06:15,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:06:15,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:06:15,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:06:15,170 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:06:15,170 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:06:15,170 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:06:15,171 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:06:15,171 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:06:15,171 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:06:15,172 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:06:15,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:06:15,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:06:15,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:06:15,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:06:15,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:06:15,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:06:15,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:06:15,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:06:15,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:06:15,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:06:15,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:06:15,175 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:06:15,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:06:15,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:06:15,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:06:15,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:06:15,177 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:06:15,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:06:15,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:06:15,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:06:15,178 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:06:15,179 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:06:15,180 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 -> b2585982366e12850b78353d5a08eef796173b16 [2020-10-20 07:06:15,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:06:15,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:06:15,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:06:15,411 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:06:15,411 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:06:15,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_trans.i [2020-10-20 07:06:15,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0549a524f/1870a3dffecb480c8bd04317d96d22d9/FLAG66660548c [2020-10-20 07:06:16,032 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:06:16,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i [2020-10-20 07:06:16,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0549a524f/1870a3dffecb480c8bd04317d96d22d9/FLAG66660548c [2020-10-20 07:06:16,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0549a524f/1870a3dffecb480c8bd04317d96d22d9 [2020-10-20 07:06:16,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:06:16,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:06:16,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:06:16,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:06:16,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:06:16,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a53d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16, skipping insertion in model container [2020-10-20 07:06:16,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:06:16,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:06:16,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:06:16,555 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:06:16,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:06:16,601 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:06:16,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16 WrapperNode [2020-10-20 07:06:16,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:06:16,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:06:16,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:06:16,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:06:16,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:06:16,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:06:16,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:06:16,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:06:16,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (1/1) ... [2020-10-20 07:06:16,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:06:16,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:06:16,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:06:16,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:06:16,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (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 07:06:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:06:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:06:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:06:16,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:06:17,099 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:06:17,100 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-20 07:06:17,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:06:17 BoogieIcfgContainer [2020-10-20 07:06:17,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:06:17,110 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:06:17,110 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:06:17,114 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:06:17,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:06:17,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:06:16" (1/3) ... [2020-10-20 07:06:17,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7badbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:06:17, skipping insertion in model container [2020-10-20 07:06:17,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:06:17,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:06:16" (2/3) ... [2020-10-20 07:06:17,119 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7badbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:06:17, skipping insertion in model container [2020-10-20 07:06:17,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:06:17,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:06:17" (3/3) ... [2020-10-20 07:06:17,121 INFO L373 chiAutomizerObserver]: Analyzing ICFG id_trans.i [2020-10-20 07:06:17,175 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:06:17,176 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:06:17,176 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:06:17,176 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:06:17,176 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:06:17,176 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:06:17,177 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:06:17,177 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:06:17,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-10-20 07:06:17,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2020-10-20 07:06:17,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:06:17,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:06:17,224 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:06:17,224 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:06:17,224 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:06:17,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2020-10-20 07:06:17,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2020-10-20 07:06:17,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:06:17,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:06:17,228 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 07:06:17,229 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:06:17,237 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 8#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~post6, main_~idBitLength~0, main_~material_length~0, main_~nlen~0, main_~j~0, main_~k~0;havoc main_~idBitLength~0;havoc main_~material_length~0;havoc main_~nlen~0;havoc main_~j~0;havoc main_~k~0;main_~nlen~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~idBitLength~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~material_length~0 := main_#t~nondet5;havoc main_#t~nondet5; 24#L30true assume !!(main_~nlen~0 == (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 32 then 1 + main_~idBitLength~0 / 32 else main_~idBitLength~0 / 32));main_~j~0 := 0; 7#L31-2true [2020-10-20 07:06:17,238 INFO L796 eck$LassoCheckResult]: Loop: 7#L31-2true assume !!(main_~j~0 < (if main_~idBitLength~0 < 0 && 0 != main_~idBitLength~0 % 8 then 1 + main_~idBitLength~0 / 8 else main_~idBitLength~0 / 8) && main_~j~0 < main_~material_length~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~j~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 6#L18true assume !(0 == __VERIFIER_assert_~cond); 4#L18-2true __VERIFIER_assert_#in~cond := (if main_~j~0 < main_~material_length~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L18-3true assume !(0 == __VERIFIER_assert_~cond); 14#L18-5true __VERIFIER_assert_#in~cond := (if 0 <= (if main_~j~0 < 0 && 0 != main_~j~0 % 4 then 1 + main_~j~0 / 4 else main_~j~0 / 4) then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 12#L18-6true assume !(0 == __VERIFIER_assert_~cond); 10#L18-8true __VERIFIER_assert_#in~cond := (if (if main_~j~0 < 0 && 0 != main_~j~0 % 4 then 1 + main_~j~0 / 4 else main_~j~0 / 4) < main_~nlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 26#L18-9true assume !(0 == __VERIFIER_assert_~cond); 21#L18-11true main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 7#L31-2true [2020-10-20 07:06:17,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:06:17,246 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-10-20 07:06:17,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:06:17,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536889353] [2020-10-20 07:06:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:06:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:06:17,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:06:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:06:17,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:06:17,409 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:06:17,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:06:17,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1457815803, now seen corresponding path program 1 times [2020-10-20 07:06:17,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:06:17,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231692590] [2020-10-20 07:06:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:06:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:06:17,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:06:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:06:17,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:06:17,499 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:06:17,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:06:17,501 INFO L82 PathProgramCache]: Analyzing trace with hash 686396344, now seen corresponding path program 1 times [2020-10-20 07:06:17,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:06:17,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271306749] [2020-10-20 07:06:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:06:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:06:17,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:06:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:06:17,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:06:17,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:06:17,725 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-20 07:06:17,776 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-20 07:06:17,776 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:17,787 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-20 07:06:17,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:17,949 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 23 [2020-10-20 07:06:17,961 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:06:17,962 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:06:17,962 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:06:17,962 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:06:17,962 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:06:17,963 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:06:17,963 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:06:17,963 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:06:17,963 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_trans.i_Iteration1_Loop [2020-10-20 07:06:17,963 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:06:17,964 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:06:17,983 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 07:06:17,992 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 07:06:18,009 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 07:06:18,117 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:06:18,118 INFO L404 LassoAnalysis]: Checking for nontermination... 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 07:06:18,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:06:18,126 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:06:18,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:06:18,141 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 07:06:18,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:06:18,185 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:06:18,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:06:18,234 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:06:18,318 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 07:06:18,321 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:06:18,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:06:18,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:06:18,322 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:06:18,323 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:06:18,323 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:06:18,323 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:06:18,323 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:06:18,323 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_trans.i_Iteration1_Loop [2020-10-20 07:06:18,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:06:18,324 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:06:18,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:06:18,351 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 07:06:18,376 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 07:06:18,487 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:06:18,492 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:06:18,504 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 07:06:18,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:06:18,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:06:18,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:06:18,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:06:18,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:06:18,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:06:18,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:06:18,515 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 07:06:18,563 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 07:06:18,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:06:18,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:06:18,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:06:18,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:06:18,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:06:18,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:06:18,568 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 07:06:18,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:06:18,610 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 07:06:18,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:06:18,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:06:18,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:06:18,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:06:18,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:06:18,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:06:18,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:06:18,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:06:18,638 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 07:06:18,638 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. 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 07:06:18,644 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:06:18,644 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 07:06:18,644 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:06:18,645 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~nlen~0) = -1*ULTIMATE.start_main_~j~0 + 4*ULTIMATE.start_main_~nlen~0 Supporting invariants [] [2020-10-20 07:06:18,680 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 07:06:18,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:06:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:06:18,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 07:06:18,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:06:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:06:18,764 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-20 07:06:18,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:06:18,963 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-10-20 07:06:18,971 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-20 07:06:18,973 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:18,976 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-20 07:06:18,979 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:18,989 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-20 07:06:18,990 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:19,173 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-10-20 07:06:19,185 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2020-10-20 07:06:19,188 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:19,190 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-20 07:06:19,192 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:19,195 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-20 07:06:19,196 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 07:06:19,267 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 07:06:19,286 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-10-20 07:06:19,288 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states. Second operand 7 states. [2020-10-20 07:06:19,680 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-10-20 07:06:19,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states.. Second operand 7 states. Result 73 states and 95 transitions. Complement of second has 13 states. [2020-10-20 07:06:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2020-10-20 07:06:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 07:06:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2020-10-20 07:06:19,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 9 letters. [2020-10-20 07:06:19,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:06:19,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 12 letters. Loop has 9 letters. [2020-10-20 07:06:19,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:06:19,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 18 letters. [2020-10-20 07:06:19,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:06:19,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 95 transitions. [2020-10-20 07:06:19,717 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:06:19,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 0 states and 0 transitions. [2020-10-20 07:06:19,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:06:19,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:06:19,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:06:19,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:06:19,723 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:06:19,723 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:06:19,723 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:06:19,723 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:06:19,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:06:19,724 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:06:19,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:06:19,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:06:19 BoogieIcfgContainer [2020-10-20 07:06:19,730 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:06:19,730 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:06:19,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:06:19,731 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:06:19,731 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:06:17" (3/4) ... [2020-10-20 07:06:19,741 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:06:19,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:06:19,743 INFO L168 Benchmark]: Toolchain (without parser) took 3425.29 ms. Allocated memory was 41.9 MB in the beginning and 54.0 MB in the end (delta: 12.1 MB). Free memory was 22.6 MB in the beginning and 37.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,744 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 32.0 MB. Free memory was 10.7 MB in the beginning and 10.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.87 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.7 MB in the beginning and 23.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.98 ms. Allocated memory is still 42.5 MB. Free memory was 23.4 MB in the beginning and 21.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,747 INFO L168 Benchmark]: Boogie Preprocessor took 26.10 ms. Allocated memory is still 42.5 MB. Free memory was 21.5 MB in the beginning and 20.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,748 INFO L168 Benchmark]: RCFGBuilder took 430.80 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 20.2 MB in the beginning and 22.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,749 INFO L168 Benchmark]: BuchiAutomizer took 2619.90 ms. Allocated memory was 44.0 MB in the beginning and 54.0 MB in the end (delta: 10.0 MB). Free memory was 22.6 MB in the beginning and 9.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,750 INFO L168 Benchmark]: Witness Printer took 11.26 ms. Allocated memory is still 54.0 MB. Free memory was 9.4 MB in the beginning and 37.4 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.2 kB. Max. memory is 14.3 GB. [2020-10-20 07:06:19,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 32.0 MB. Free memory was 10.7 MB in the beginning and 10.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 278.87 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.7 MB in the beginning and 23.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 41.98 ms. Allocated memory is still 42.5 MB. Free memory was 23.4 MB in the beginning and 21.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.10 ms. Allocated memory is still 42.5 MB. Free memory was 21.5 MB in the beginning and 20.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 430.80 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 20.2 MB in the beginning and 22.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 2619.90 ms. Allocated memory was 44.0 MB in the beginning and 54.0 MB in the end (delta: 10.0 MB). Free memory was 22.6 MB in the beginning and 9.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 14.3 GB. * Witness Printer took 11.26 ms. Allocated memory is still 54.0 MB. Free memory was 9.4 MB in the beginning and 37.4 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.2 kB. Max. memory is 14.3 GB. * 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 -1 * j + 4 * nlen and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. 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: 17 SDtfs, 25 SDslu, 38 SDs, 0 SdLazy, 42 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div404 bol100 ite100 ukn100 eq106 hnf48 smp100 dnf100 smp100 tf104 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...