./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.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 b23842887bb783492886a6eb7113cc470799b443 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:43:46,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:43:46,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:43:46,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:43:46,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:43:46,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:43:46,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:43:46,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:43:46,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:43:46,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:43:46,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:43:46,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:43:46,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:43:46,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:43:46,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:43:46,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:43:46,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:43:46,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:43:46,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:43:46,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:43:46,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:43:46,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:43:46,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:43:46,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:43:46,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:43:46,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:43:46,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:43:46,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:43:46,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:43:46,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:43:46,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:43:46,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:43:46,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:43:46,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:43:46,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:43:46,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:43:46,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:43:46,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:43:46,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:43:46,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:43:46,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:43:46,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:43:46,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:43:46,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:43:46,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:43:46,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:43:46,237 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:43:46,237 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:43:46,238 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:43:46,238 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:43:46,238 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:43:46,240 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:43:46,241 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:43:46,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:43:46,242 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:43:46,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:43:46,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:43:46,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:43:46,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:43:46,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:43:46,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:43:46,245 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:43:46,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:43:46,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:43:46,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:43:46,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:43:46,246 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:43:46,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:43:46,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:43:46,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:43:46,247 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:43:46,248 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:43:46,248 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 -> b23842887bb783492886a6eb7113cc470799b443 [2020-10-20 06:43:46,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:43:46,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:43:46,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:43:46,547 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:43:46,548 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:43:46,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2020-10-20 06:43:46,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d6a717ea/d4164f50d9644d79acec6b32d9343d58/FLAGdaa4e8365 [2020-10-20 06:43:47,062 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:43:47,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2020-10-20 06:43:47,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d6a717ea/d4164f50d9644d79acec6b32d9343d58/FLAGdaa4e8365 [2020-10-20 06:43:47,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d6a717ea/d4164f50d9644d79acec6b32d9343d58 [2020-10-20 06:43:47,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:43:47,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:43:47,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:43:47,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:43:47,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:43:47,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fbafb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47, skipping insertion in model container [2020-10-20 06:43:47,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:43:47,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:43:47,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:43:47,762 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:43:47,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:43:47,791 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:43:47,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47 WrapperNode [2020-10-20 06:43:47,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:43:47,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:43:47,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:43:47,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:43:47,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:43:47,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:43:47,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:43:47,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:43:47,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... [2020-10-20 06:43:47,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:43:47,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:43:47,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:43:47,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:43:47,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:43:47,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:43:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-20 06:43:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-20 06:43:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-20 06:43:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-20 06:43:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:43:47,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:43:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:43:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:43:48,132 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:43:48,133 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-20 06:43:48,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:48 BoogieIcfgContainer [2020-10-20 06:43:48,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:43:48,137 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:43:48,137 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:43:48,146 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:43:48,147 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:48,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:43:47" (1/3) ... [2020-10-20 06:43:48,149 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a803329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:43:48, skipping insertion in model container [2020-10-20 06:43:48,149 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:48,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:47" (2/3) ... [2020-10-20 06:43:48,150 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a803329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:43:48, skipping insertion in model container [2020-10-20 06:43:48,152 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:48,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:48" (3/3) ... [2020-10-20 06:43:48,155 INFO L373 chiAutomizerObserver]: Analyzing ICFG mutual_simple.i [2020-10-20 06:43:48,245 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:43:48,246 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:43:48,246 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:43:48,246 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:43:48,246 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:43:48,247 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:43:48,247 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:43:48,247 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:43:48,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-20 06:43:48,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:43:48,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:48,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:48,300 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 06:43:48,300 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:43:48,300 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:43:48,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-20 06:43:48,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:43:48,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:48,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:48,303 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 06:43:48,304 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:43:48,310 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_~p1~0.base, main_~p1~0.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(main_#t~nondet6, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet6; 3#L37true call f(main_~p1~0.base, main_~p1~0.offset);< 14#fENTRYtrue [2020-10-20 06:43:48,310 INFO L796 eck$LassoCheckResult]: Loop: 14#fENTRYtrue ~q.base, ~q.offset := #in~q.base, #in~q.offset;call #t~mem1 := read~int(~q.base, ~q.offset, 4); 16#L13true assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem2 := read~int(~q.base, ~q.offset, 4);#t~post3 := #t~mem2;call write~int(#t~post3 - 1, ~q.base, ~q.offset, 4);havoc #t~mem2;havoc #t~post3; 10#L17true call g(~q.base, ~q.offset);< 13#gENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4); 4#L22true assume !(#t~mem4 < 0);havoc #t~mem4; 17#L25true call f(~p.base, ~p.offset);< 14#fENTRYtrue [2020-10-20 06:43:48,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:48,316 INFO L82 PathProgramCache]: Analyzing trace with hash 43767, now seen corresponding path program 1 times [2020-10-20 06:43:48,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:48,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057523071] [2020-10-20 06:43:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:48,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:48,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:48,477 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:48,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:48,479 INFO L82 PathProgramCache]: Analyzing trace with hash 891860259, now seen corresponding path program 1 times [2020-10-20 06:43:48,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:48,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238076907] [2020-10-20 06:43:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:48,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:48,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:48,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:48,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:48,560 INFO L82 PathProgramCache]: Analyzing trace with hash -306262119, now seen corresponding path program 1 times [2020-10-20 06:43:48,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:48,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302023509] [2020-10-20 06:43:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:48,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:48,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:48,656 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:49,189 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-10-20 06:43:49,360 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:43:49,361 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:43:49,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:43:49,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:43:49,362 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:43:49,362 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:49,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:43:49,363 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:43:49,364 INFO L133 ssoRankerPreferences]: Filename of dumped script: mutual_simple.i_Iteration1_Lasso [2020-10-20 06:43:49,373 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:43:49,374 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:43:49,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:43:49,818 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:43:49,824 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:43:49,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:49,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:49,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:49,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:49,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:49,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:49,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:49,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:49,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:43:49,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:49,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:49,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:49,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:49,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:49,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:49,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:49,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:49,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:43:49,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:49,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:49,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:43:49,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:49,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:49,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:49,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:43:49,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:49,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:49,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:49,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:49,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:49,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:49,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:49,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:50,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:50,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:43:50,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:50,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:50,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:50,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:50,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:50,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:50,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:50,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 6 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:43:50,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:50,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:50,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:50,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:50,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:50,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:50,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:50,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:50,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:50,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:50,140 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 06:43:50,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:50,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:50,145 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-20 06:43:50,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:50,152 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:50,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:43:50,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:43:50,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:43:50,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:43:50,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:43:50,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:43:50,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:43:50,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:43:50,264 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-10-20 06:43:50,264 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:50,274 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:43:50,277 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:43:50,277 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:43:50,278 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int f_#in~q.base) f_#in~q.offset)_1) = 1*v_rep(select (select #memory_int f_#in~q.base) f_#in~q.offset)_1 Supporting invariants [] [2020-10-20 06:43:50,318 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2020-10-20 06:43:50,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-20 06:43:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:50,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:43:50,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:43:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:50,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 29 conjunts are in the unsatisfiable core [2020-10-20 06:43:50,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:43:50,562 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2020-10-20 06:43:50,566 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:43:50,573 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:43:50,574 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:43:50,574 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:19 [2020-10-20 06:43:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:43:50,696 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 06:43:50,697 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 6 states. [2020-10-20 06:43:50,994 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 6 states. Result 47 states and 53 transitions. Complement of second has 24 states. [2020-10-20 06:43:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2020-10-20 06:43:50,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:43:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2020-10-20 06:43:51,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 6 letters. [2020-10-20 06:43:51,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:51,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2020-10-20 06:43:51,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:51,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 12 letters. [2020-10-20 06:43:51,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:43:51,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 53 transitions. [2020-10-20 06:43:51,021 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:43:51,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 0 states and 0 transitions. [2020-10-20 06:43:51,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:43:51,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:43:51,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:43:51,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:43:51,028 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:43:51,031 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:43:51,034 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:43:51,034 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:43:51,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:43:51,035 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:43:51,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:43:51,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:43:51 BoogieIcfgContainer [2020-10-20 06:43:51,042 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:43:51,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:43:51,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:43:51,045 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:43:51,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:48" (3/4) ... [2020-10-20 06:43:51,051 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:43:51,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:43:51,056 INFO L168 Benchmark]: Toolchain (without parser) took 3579.22 ms. Allocated memory was 36.7 MB in the beginning and 57.7 MB in the end (delta: 21.0 MB). Free memory was 19.9 MB in the beginning and 16.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,057 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 33.6 MB. Free memory was 11.8 MB in the beginning and 11.8 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.85 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 19.1 MB in the beginning and 26.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.30 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 25.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,063 INFO L168 Benchmark]: Boogie Preprocessor took 22.13 ms. Allocated memory is still 44.0 MB. Free memory was 25.0 MB in the beginning and 23.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,070 INFO L168 Benchmark]: RCFGBuilder took 283.74 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 23.8 MB in the beginning and 25.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,071 INFO L168 Benchmark]: BuchiAutomizer took 2905.05 ms. Allocated memory was 46.1 MB in the beginning and 57.7 MB in the end (delta: 11.5 MB). Free memory was 24.8 MB in the beginning and 16.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,071 INFO L168 Benchmark]: Witness Printer took 7.47 ms. Allocated memory is still 57.7 MB. Free memory was 16.9 MB in the beginning and 16.3 MB in the end (delta: 560.7 kB). Peak memory consumption was 560.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:43:51,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 33.6 MB. Free memory was 11.8 MB in the beginning and 11.8 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 311.85 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 19.1 MB in the beginning and 26.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 37.30 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 25.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.13 ms. Allocated memory is still 44.0 MB. Free memory was 25.0 MB in the beginning and 23.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 283.74 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 23.8 MB in the beginning and 25.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 2905.05 ms. Allocated memory was 46.1 MB in the beginning and 57.7 MB in the end (delta: 11.5 MB). Free memory was 24.8 MB in the beginning and 16.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 14.3 GB. * Witness Printer took 7.47 ms. Allocated memory is still 57.7 MB. Free memory was 16.9 MB in the beginning and 16.3 MB in the end (delta: 560.7 kB). Peak memory consumption was 560.7 kB. Max. memory is 14.3 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[q][q] and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. 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: 12 SDtfs, 12 SDslu, 22 SDs, 0 SdLazy, 58 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital107 mio100 ax100 hnf99 lsp94 ukn63 mio100 lsp34 div100 bol100 ite100 ukn100 eq172 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 2 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...