./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d436f9bf6df44883ea10fac4397136e5a572f5c ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:01:00,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:01:00,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:01:00,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:01:00,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:01:00,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:01:00,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:01:00,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:01:00,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:01:00,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:01:00,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:01:00,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:01:00,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:01:00,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:01:00,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:01:00,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:01:00,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:01:00,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:01:00,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:01:00,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:01:00,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:01:00,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:01:00,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:01:00,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:01:00,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:01:00,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:01:00,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:01:00,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:01:00,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:01:00,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:01:00,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:01:00,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:01:00,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:01:00,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:01:00,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:01:00,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:01:00,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:01:00,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:01:00,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:01:00,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:01:00,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:01:00,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:01:00,230 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:01:00,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:01:00,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:01:00,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:01:00,234 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:01:00,234 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:01:00,235 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:01:00,235 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:01:00,235 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:01:00,236 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:01:00,236 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:01:00,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:01:00,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:01:00,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:01:00,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:01:00,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:01:00,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:01:00,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:01:00,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:01:00,240 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:01:00,240 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:01:00,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:01:00,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:01:00,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:01:00,242 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:01:00,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:01:00,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:01:00,242 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:01:00,243 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:01:00,244 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 -> 7d436f9bf6df44883ea10fac4397136e5a572f5c [2019-11-28 03:01:00,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:01:00,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:01:00,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:01:00,596 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:01:00,596 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:01:00,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i [2019-11-28 03:01:00,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322e747ec/36d092df982146a38a1cffe8e48135da/FLAGc8d77ba1f [2019-11-28 03:01:01,199 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:01:01,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i [2019-11-28 03:01:01,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322e747ec/36d092df982146a38a1cffe8e48135da/FLAGc8d77ba1f [2019-11-28 03:01:01,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322e747ec/36d092df982146a38a1cffe8e48135da [2019-11-28 03:01:01,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:01:01,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:01:01,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:01:01,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:01:01,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:01:01,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:01" (1/1) ... [2019-11-28 03:01:01,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a92c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01, skipping insertion in model container [2019-11-28 03:01:01,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:01" (1/1) ... [2019-11-28 03:01:01,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:01:01,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:01:01,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:01:01,981 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:01:02,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:01:02,100 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:01:02,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02 WrapperNode [2019-11-28 03:01:02,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:01:02,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:01:02,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:01:02,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:01:02,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:01:02,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:01:02,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:01:02,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:01:02,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... [2019-11-28 03:01:02,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:01:02,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:01:02,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:01:02,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:01:02,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:01:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:01:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:01:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:01:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:01:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:01:02,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:01:02,563 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:01:02,563 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 03:01:02,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:02 BoogieIcfgContainer [2019-11-28 03:01:02,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:01:02,565 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:01:02,566 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:01:02,568 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:01:02,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:01:02,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:01:01" (1/3) ... [2019-11-28 03:01:02,571 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1eb8e0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:01:02, skipping insertion in model container [2019-11-28 03:01:02,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:01:02,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:02" (2/3) ... [2019-11-28 03:01:02,571 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1eb8e0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:01:02, skipping insertion in model container [2019-11-28 03:01:02,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:01:02,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:02" (3/3) ... [2019-11-28 03:01:02,573 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.06-alloca.i [2019-11-28 03:01:02,613 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:01:02,614 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:01:02,614 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:01:02,614 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:01:02,614 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:01:02,614 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:01:02,614 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:01:02,615 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:01:02,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-28 03:01:02,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:01:02,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:01:02,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:01:02,655 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:01:02,656 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:01:02,656 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:01:02,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-28 03:01:02,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:01:02,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:01:02,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:01:02,658 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:01:02,658 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:01:02,666 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet12, main_#t~nondet13, main_#t~ret14;test_fun_#in~x, test_fun_#in~y := main_#t~nondet12, main_#t~nondet13;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem11, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 8#L555-5true [2019-11-28 03:01:02,667 INFO L796 eck$LassoCheckResult]: Loop: 8#L555-5true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 12#L555-1true assume test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 6#L555-3true assume !!test_fun_#t~short7;havoc test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem8 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem8;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem9 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem10, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem10; 8#L555-5true [2019-11-28 03:01:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:01:02,672 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 03:01:02,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:01:02,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531429931] [2019-11-28 03:01:02,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:01:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:01:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:01:02,833 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:01:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:01:02,834 INFO L82 PathProgramCache]: Analyzing trace with hash 36846, now seen corresponding path program 1 times [2019-11-28 03:01:02,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:01:02,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64656807] [2019-11-28 03:01:02,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:01:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:01:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:01:02,880 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:01:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:01:02,883 INFO L82 PathProgramCache]: Analyzing trace with hash 28695788, now seen corresponding path program 1 times [2019-11-28 03:01:02,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:01:02,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715435554] [2019-11-28 03:01:02,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:01:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:01:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:01:02,991 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:01:03,228 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-11-28 03:01:03,704 WARN L192 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2019-11-28 03:01:03,860 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-11-28 03:01:03,875 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:01:03,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:01:03,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:01:03,877 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:01:03,877 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:01:03,878 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:01:03,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:01:03,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:01:03,879 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.06-alloca.i_Iteration1_Lasso [2019-11-28 03:01:03,879 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:01:03,879 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:01:03,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,292 WARN L192 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-11-28 03:01:04,499 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-11-28 03:01:04,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:04,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:01:05,160 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:01:05,166 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:01:05,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:01:05,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:01:05,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:01:05,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:01:05,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:01:05,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:01:05,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:01:05,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:01:05,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:01:05,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:01:05,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:01:05,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:01:05,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:01:05,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:01:05,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:01:05,212 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:01:05,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:01:05,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:01:05,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:01:05,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:01:05,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:01:05,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:01:05,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:01:05,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:01:05,286 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-28 03:01:05,287 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:01:05,304 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:01:05,325 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:01:05,325 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:01:05,326 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 Supporting invariants [] [2019-11-28 03:01:05,473 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2019-11-28 03:01:05,481 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:01:05,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:01:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:01:05,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:01:05,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:01:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:01:05,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:01:05,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:01:05,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:01:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:01:05,675 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 03:01:05,677 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2019-11-28 03:01:05,798 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 35 states and 38 transitions. Complement of second has 9 states. [2019-11-28 03:01:05,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:01:05,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:01:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2019-11-28 03:01:05,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-28 03:01:05,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:01:05,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-28 03:01:05,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:01:05,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-28 03:01:05,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:01:05,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 38 transitions. [2019-11-28 03:01:05,813 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:01:05,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-11-28 03:01:05,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:01:05,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:01:05,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:01:05,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:01:05,819 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:01:05,819 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:01:05,819 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:01:05,819 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:01:05,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:01:05,820 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:01:05,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:01:05,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:01:05 BoogieIcfgContainer [2019-11-28 03:01:05,827 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:01:05,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:01:05,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:01:05,829 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:01:05,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:02" (3/4) ... [2019-11-28 03:01:05,833 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:01:05,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:01:05,836 INFO L168 Benchmark]: Toolchain (without parser) took 4291.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2019-11-28 03:01:05,837 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:01:05,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:01:05,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:01:05,840 INFO L168 Benchmark]: Boogie Preprocessor took 25.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:01:05,842 INFO L168 Benchmark]: RCFGBuilder took 387.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:01:05,844 INFO L168 Benchmark]: BuchiAutomizer took 3261.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -23.3 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:01:05,845 INFO L168 Benchmark]: Witness Printer took 4.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:01:05,862 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 557.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 387.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3261.86 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -23.3 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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-#memory_int-unknown[x_ref][x_ref] and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. 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: 6 SDtfs, 16 SDslu, 7 SDs, 0 SdLazy, 13 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital422 mio100 ax104 hnf100 lsp94 ukn43 mio100 lsp39 div100 bol100 ite100 ukn100 eq195 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...