./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/list-ext-properties/test-0232_1_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: 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 /storage/repos/svcomp/c/list-ext-properties/test-0232_1_true-valid-memsafety_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0eb6dcabc0b5a8d392af7836fd5c7e700568e57 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 22:57:23,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 22:57:23,315 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 22:57:23,334 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 22:57:23,334 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 22:57:23,335 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 22:57:23,337 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 22:57:23,339 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 22:57:23,341 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 22:57:23,341 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 22:57:23,343 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 22:57:23,343 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 22:57:23,344 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 22:57:23,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 22:57:23,346 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 22:57:23,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 22:57:23,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 22:57:23,351 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 22:57:23,353 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 22:57:23,355 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 22:57:23,356 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 22:57:23,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 22:57:23,360 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 22:57:23,360 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 22:57:23,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 22:57:23,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 22:57:23,363 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 22:57:23,364 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 22:57:23,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 22:57:23,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 22:57:23,367 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 22:57:23,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 22:57:23,368 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 22:57:23,368 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 22:57:23,370 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 22:57:23,370 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 22:57:23,371 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 22:57:23,398 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 22:57:23,399 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 22:57:23,401 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 22:57:23,401 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 22:57:23,401 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 22:57:23,401 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 22:57:23,401 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 22:57:23,402 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 22:57:23,402 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 22:57:23,402 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 22:57:23,402 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 22:57:23,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 22:57:23,402 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 22:57:23,404 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 22:57:23,404 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 22:57:23,404 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 22:57:23,404 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 22:57:23,405 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 22:57:23,405 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 22:57:23,405 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 22:57:23,405 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 22:57:23,405 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 22:57:23,407 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 22:57:23,408 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 22:57:23,408 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 22:57:23,408 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 22:57:23,408 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 22:57:23,408 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 22:57:23,409 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 22:57:23,409 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 22:57:23,409 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 22:57:23,411 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 22:57:23,411 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0eb6dcabc0b5a8d392af7836fd5c7e700568e57 [2019-01-01 22:57:23,467 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 22:57:23,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 22:57:23,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 22:57:23,491 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 22:57:23,491 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 22:57:23,492 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-ext-properties/test-0232_1_true-valid-memsafety_true-termination.i [2019-01-01 22:57:23,559 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07a74e75/d524defbc4f34576984f90919ee87ab3/FLAG79fd26b24 [2019-01-01 22:57:24,041 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 22:57:24,043 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-ext-properties/test-0232_1_true-valid-memsafety_true-termination.i [2019-01-01 22:57:24,056 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07a74e75/d524defbc4f34576984f90919ee87ab3/FLAG79fd26b24 [2019-01-01 22:57:24,350 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07a74e75/d524defbc4f34576984f90919ee87ab3 [2019-01-01 22:57:24,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 22:57:24,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 22:57:24,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 22:57:24,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 22:57:24,365 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 22:57:24,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:57:24" (1/1) ... [2019-01-01 22:57:24,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf58ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:24, skipping insertion in model container [2019-01-01 22:57:24,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:57:24" (1/1) ... [2019-01-01 22:57:24,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 22:57:24,423 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 22:57:24,822 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:57:24,835 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 22:57:24,909 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:57:25,062 INFO L195 MainTranslator]: Completed translation [2019-01-01 22:57:25,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25 WrapperNode [2019-01-01 22:57:25,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 22:57:25,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 22:57:25,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 22:57:25,065 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 22:57:25,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 22:57:25,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 22:57:25,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 22:57:25,129 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 22:57:25,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (1/1) ... [2019-01-01 22:57:25,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 22:57:25,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 22:57:25,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 22:57:25,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 22:57:25,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (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 [2019-01-01 22:57:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-01 22:57:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 22:57:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-01 22:57:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-01 22:57:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 22:57:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-01 22:57:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 22:57:25,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 22:57:25,689 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 22:57:25,690 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-01 22:57:25,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:57:25 BoogieIcfgContainer [2019-01-01 22:57:25,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 22:57:25,692 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 22:57:25,692 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 22:57:25,698 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 22:57:25,700 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:57:25,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 10:57:24" (1/3) ... [2019-01-01 22:57:25,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@466d4f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:57:25, skipping insertion in model container [2019-01-01 22:57:25,701 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:57:25,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:57:25" (2/3) ... [2019-01-01 22:57:25,702 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@466d4f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:57:25, skipping insertion in model container [2019-01-01 22:57:25,702 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:57:25,702 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:57:25" (3/3) ... [2019-01-01 22:57:25,704 INFO L375 chiAutomizerObserver]: Analyzing ICFG test-0232_1_true-valid-memsafety_true-termination.i [2019-01-01 22:57:25,768 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 22:57:25,769 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 22:57:25,769 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 22:57:25,769 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 22:57:25,769 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 22:57:25,769 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 22:57:25,770 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 22:57:25,770 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 22:57:25,770 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 22:57:25,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-01-01 22:57:25,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-01-01 22:57:25,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:57:25,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:57:25,817 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 22:57:25,818 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-01-01 22:57:25,818 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 22:57:25,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-01-01 22:57:25,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-01-01 22:57:25,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:57:25,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:57:25,820 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 22:57:25,820 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-01-01 22:57:25,827 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 4#L-1true havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 10#L639-3true [2019-01-01 22:57:25,828 INFO L796 eck$LassoCheckResult]: Loop: 10#L639-3true append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 3#L630true assume append_#t~mem3.base != 0 || append_#t~mem3.offset != 0;call append_#t~mem4.base, append_#t~mem4.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem5.base, append_#t~mem5.offset := read~$Pointer$(append_#t~mem4.base, 4 + append_#t~mem4.offset, 4);append_#t~ite7.base, append_#t~ite7.offset := append_#t~mem5.base, append_#t~mem5.offset; 5#L630-2true call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 12#L625true main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 7#L639-1true assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 10#L639-3true [2019-01-01 22:57:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:25,835 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-01-01 22:57:25,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:25,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:25,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:25,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:25,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:25,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:25,973 INFO L82 PathProgramCache]: Analyzing trace with hash 34451375, now seen corresponding path program 1 times [2019-01-01 22:57:25,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:25,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:25,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:25,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:25,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:26,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1805890861, now seen corresponding path program 1 times [2019-01-01 22:57:26,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:26,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:26,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:26,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:26,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:57:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:57:26,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 22:57:26,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 22:57:27,578 WARN L181 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2019-01-01 22:57:28,302 WARN L181 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-01-01 22:57:28,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 22:57:28,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 22:57:28,319 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2019-01-01 22:57:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:57:28,416 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2019-01-01 22:57:28,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 22:57:28,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2019-01-01 22:57:28,421 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-01-01 22:57:28,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 16 transitions. [2019-01-01 22:57:28,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-01-01 22:57:28,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-01-01 22:57:28,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2019-01-01 22:57:28,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 22:57:28,428 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-01-01 22:57:28,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2019-01-01 22:57:28,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-01-01 22:57:28,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-01 22:57:28,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-01-01 22:57:28,460 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-01-01 22:57:28,461 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-01-01 22:57:28,461 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 22:57:28,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-01-01 22:57:28,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-01-01 22:57:28,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:57:28,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:57:28,463 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-01 22:57:28,463 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-01-01 22:57:28,463 INFO L794 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 46#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 47#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 54#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 44#L630-2 [2019-01-01 22:57:28,463 INFO L796 eck$LassoCheckResult]: Loop: 44#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 45#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 49#L639-1 assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 51#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 53#L630 assume append_#t~mem3.base != 0 || append_#t~mem3.offset != 0;call append_#t~mem4.base, append_#t~mem4.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem5.base, append_#t~mem5.offset := read~$Pointer$(append_#t~mem4.base, 4 + append_#t~mem4.offset, 4);append_#t~ite7.base, append_#t~ite7.offset := append_#t~mem5.base, append_#t~mem5.offset; 44#L630-2 [2019-01-01 22:57:28,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:28,464 INFO L82 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2019-01-01 22:57:28,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:28,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:28,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:28,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:28,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:28,513 INFO L82 PathProgramCache]: Analyzing trace with hash 41102165, now seen corresponding path program 2 times [2019-01-01 22:57:28,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:28,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:28,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:28,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:28,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:28,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:28,568 INFO L82 PathProgramCache]: Analyzing trace with hash 351588334, now seen corresponding path program 1 times [2019-01-01 22:57:28,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:28,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:28,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:28,574 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:57:28,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:29,486 WARN L181 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2019-01-01 22:57:30,578 WARN L181 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 139 [2019-01-01 22:57:31,107 WARN L181 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2019-01-01 22:57:31,314 WARN L181 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-01-01 22:57:31,341 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:57:31,342 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:57:31,342 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:57:31,342 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:57:31,342 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:57:31,343 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:57:31,343 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:57:31,343 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:57:31,343 INFO L131 ssoRankerPreferences]: Filename of dumped script: test-0232_1_true-valid-memsafety_true-termination.i_Iteration2_Lasso [2019-01-01 22:57:31,343 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:57:31,343 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:57:31,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:31,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:32,047 WARN L181 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-01-01 22:57:33,576 WARN L181 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2019-01-01 22:57:33,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:33,931 WARN L181 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-01-01 22:57:34,210 WARN L181 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-01-01 22:57:36,025 WARN L181 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-01-01 22:57:41,118 WARN L181 SmtUtils]: Spent 5.09 s on a formula simplification. DAG size of input: 129 DAG size of output: 129 [2019-01-01 22:57:41,238 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:57:41,244 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:57:41,246 INFO L122 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 [2019-01-01 22:57:41,249 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,249 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,249 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,250 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,255 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:57:41,255 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:57:41,270 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,270 INFO L122 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 [2019-01-01 22:57:41,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,271 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,271 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,271 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,275 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:57:41,276 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:57:41,279 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,279 INFO L122 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 [2019-01-01 22:57:41,280 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,280 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,280 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,282 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,282 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,283 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,283 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,284 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,285 INFO L122 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 [2019-01-01 22:57:41,285 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,286 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,286 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,286 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,286 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,287 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,288 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,289 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,290 INFO L122 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 [2019-01-01 22:57:41,291 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,291 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,291 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,291 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,291 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,292 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,292 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,293 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,295 INFO L122 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 [2019-01-01 22:57:41,297 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,297 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,297 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,297 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,298 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,298 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,298 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,300 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,301 INFO L122 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 [2019-01-01 22:57:41,301 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,301 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,303 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,303 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,303 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,304 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,304 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,306 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,306 INFO L122 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 [2019-01-01 22:57:41,307 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,307 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,307 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,307 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,307 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,310 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,310 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,311 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,312 INFO L122 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 [2019-01-01 22:57:41,314 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,314 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,314 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,314 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,314 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,316 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,316 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,316 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,317 INFO L122 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 [2019-01-01 22:57:41,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,317 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,319 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,320 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,320 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,320 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,320 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,323 INFO L122 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 [2019-01-01 22:57:41,323 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,323 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,323 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,325 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,325 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,326 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,326 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,328 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,329 INFO L122 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 [2019-01-01 22:57:41,330 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,330 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,331 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,331 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,331 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,331 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,331 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,334 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,334 INFO L122 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 [2019-01-01 22:57:41,335 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,335 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,335 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,335 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,335 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,350 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,350 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,352 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,352 INFO L122 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 [2019-01-01 22:57:41,353 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,353 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:57:41,353 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,353 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,354 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,356 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:57:41,356 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:57:41,358 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:57:41,358 INFO L122 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 [2019-01-01 22:57:41,359 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:57:41,359 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:57:41,359 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:57:41,359 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:57:41,364 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:57:41,364 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:57:41,377 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:57:41,391 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-01-01 22:57:41,391 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-01-01 22:57:41,394 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:57:41,396 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-01 22:57:41,397 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:57:41,398 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(~c~0) = -2*~c~0 + 39 Supporting invariants [] [2019-01-01 22:57:41,540 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2019-01-01 22:57:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:57:41,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:57:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:57:41,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:57:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:57:41,685 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 [2019-01-01 22:57:41,686 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 5 states. [2019-01-01 22:57:41,725 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 19 states and 26 transitions. Complement of second has 6 states. [2019-01-01 22:57:41,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-01 22:57:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-01 22:57:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-01-01 22:57:41,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 5 letters. [2019-01-01 22:57:41,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:57:41,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 5 letters. [2019-01-01 22:57:41,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:57:41,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 10 letters. [2019-01-01 22:57:41,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:57:41,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2019-01-01 22:57:41,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:41,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 21 transitions. [2019-01-01 22:57:41,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-01-01 22:57:41,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-01-01 22:57:41,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2019-01-01 22:57:41,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:57:41,737 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-01-01 22:57:41,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2019-01-01 22:57:41,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-01-01 22:57:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-01 22:57:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-01-01 22:57:41,741 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-01-01 22:57:41,741 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-01-01 22:57:41,741 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 22:57:41,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-01-01 22:57:41,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:41,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:57:41,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:57:41,742 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:57:41,743 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 22:57:41,744 INFO L794 eck$LassoCheckResult]: Stem: 164#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 157#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 158#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 165#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 167#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 154#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 160#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 161#L639-4 assume !(main_~length~0 > 0); 159#L650-1 [2019-01-01 22:57:41,744 INFO L796 eck$LassoCheckResult]: Loop: 159#L650-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 159#L650-1 [2019-01-01 22:57:41,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:41,745 INFO L82 PathProgramCache]: Analyzing trace with hash 149888852, now seen corresponding path program 1 times [2019-01-01 22:57:41,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:41,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:41,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:41,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:41,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:57:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:57:41,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 22:57:41,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 22:57:41,820 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-01-01 22:57:41,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:41,821 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2019-01-01 22:57:41,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:41,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:41,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:41,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:41,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:42,047 WARN L181 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-01-01 22:57:42,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 22:57:42,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 22:57:42,093 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-01-01 22:57:42,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:57:42,125 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-01-01 22:57:42,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 22:57:42,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2019-01-01 22:57:42,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:42,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. [2019-01-01 22:57:42,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-01-01 22:57:42,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-01-01 22:57:42,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2019-01-01 22:57:42,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:57:42,129 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-01-01 22:57:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2019-01-01 22:57:42,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-01-01 22:57:42,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-01 22:57:42,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2019-01-01 22:57:42,132 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-01-01 22:57:42,132 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-01-01 22:57:42,132 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-01 22:57:42,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2019-01-01 22:57:42,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:42,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:57:42,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:57:42,134 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:57:42,134 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 22:57:42,134 INFO L794 eck$LassoCheckResult]: Stem: 203#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 192#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 193#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 204#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 206#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 195#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 199#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 200#L639-4 assume main_~length~0 > 0;call main_#t~mem10.base, main_#t~mem10.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_#t~mem10.base, main_#t~mem10.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem10.base, main_#t~mem10.offset;call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_#t~mem12.base, 4 + main_#t~mem12.offset, 4);call ULTIMATE.dealloc(main_#t~mem13.base, main_#t~mem13.offset);havoc main_#t~mem12.base, main_#t~mem12.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem14.base, main_#t~mem14.offset);havoc main_#t~mem14.base, main_#t~mem14.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post15 := main_~length~0;main_~length~0 := main_#t~post15 - 1;havoc main_#t~post15; 198#L650-1 [2019-01-01 22:57:42,134 INFO L796 eck$LassoCheckResult]: Loop: 198#L650-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 198#L650-1 [2019-01-01 22:57:42,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:42,136 INFO L82 PathProgramCache]: Analyzing trace with hash 149888850, now seen corresponding path program 1 times [2019-01-01 22:57:42,136 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:42,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:42,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:42,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:42,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:42,206 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 2 times [2019-01-01 22:57:42,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:42,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:42,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:42,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:42,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:42,222 INFO L82 PathProgramCache]: Analyzing trace with hash 351587092, now seen corresponding path program 1 times [2019-01-01 22:57:42,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:42,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:42,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,225 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:57:42,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:57:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:57:42,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 22:57:42,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 22:57:42,415 WARN L181 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-01-01 22:57:42,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 22:57:42,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-01 22:57:42,454 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 5 states. [2019-01-01 22:57:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:57:42,478 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-01-01 22:57:42,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 22:57:42,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2019-01-01 22:57:42,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:42,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 29 transitions. [2019-01-01 22:57:42,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-01-01 22:57:42,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-01-01 22:57:42,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2019-01-01 22:57:42,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:57:42,484 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2019-01-01 22:57:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2019-01-01 22:57:42,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2019-01-01 22:57:42,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-01 22:57:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-01-01 22:57:42,487 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-01-01 22:57:42,487 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-01-01 22:57:42,487 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2019-01-01 22:57:42,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2019-01-01 22:57:42,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:42,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:57:42,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:57:42,491 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-01-01 22:57:42,491 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 22:57:42,491 INFO L794 eck$LassoCheckResult]: Stem: 254#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 247#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 248#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 255#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 244#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 245#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 252#L639-1 assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 253#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 256#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 258#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 257#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 250#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 251#L639-4 assume main_~length~0 > 0;call main_#t~mem10.base, main_#t~mem10.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_#t~mem10.base, main_#t~mem10.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem10.base, main_#t~mem10.offset;call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_#t~mem12.base, 4 + main_#t~mem12.offset, 4);call ULTIMATE.dealloc(main_#t~mem13.base, main_#t~mem13.offset);havoc main_#t~mem12.base, main_#t~mem12.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem14.base, main_#t~mem14.offset);havoc main_#t~mem14.base, main_#t~mem14.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post15 := main_~length~0;main_~length~0 := main_#t~post15 - 1;havoc main_#t~post15; 249#L650-1 [2019-01-01 22:57:42,491 INFO L796 eck$LassoCheckResult]: Loop: 249#L650-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 249#L650-1 [2019-01-01 22:57:42,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:42,491 INFO L82 PathProgramCache]: Analyzing trace with hash -315524230, now seen corresponding path program 1 times [2019-01-01 22:57:42,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:42,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:42,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:42,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:57:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:57:42,789 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 22:57:42,789 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 22:57:42,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:57:42,851 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:57:43,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2019-01-01 22:57:43,090 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2019-01-01 22:57:43,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 22:57:43,166 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 33 [2019-01-01 22:57:43,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 26 [2019-01-01 22:57:43,185 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2019-01-01 22:57:43,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2019-01-01 22:57:43,234 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-01 22:57:43,252 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-01 22:57:43,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-01-01 22:57:43,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-01-01 22:57:43,309 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:39, output treesize:32 [2019-01-01 22:57:43,534 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-01-01 22:57:43,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2019-01-01 22:57:43,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-01 22:57:43,541 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 22:57:43,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-01 22:57:43,545 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2019-01-01 22:57:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:57:43,566 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 22:57:43,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2019-01-01 22:57:43,567 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-01-01 22:57:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:43,567 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 3 times [2019-01-01 22:57:43,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:43,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:43,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:43,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:43,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:44,268 WARN L181 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-01-01 22:57:44,390 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-01-01 22:57:44,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 22:57:44,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-01-01 22:57:44,391 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 8 states. [2019-01-01 22:57:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:57:44,469 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-01-01 22:57:44,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 22:57:44,471 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2019-01-01 22:57:44,472 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:44,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2019-01-01 22:57:44,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-01-01 22:57:44,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-01-01 22:57:44,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2019-01-01 22:57:44,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:57:44,474 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-01-01 22:57:44,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2019-01-01 22:57:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-01 22:57:44,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-01 22:57:44,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-01-01 22:57:44,476 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-01-01 22:57:44,476 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-01-01 22:57:44,476 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2019-01-01 22:57:44,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2019-01-01 22:57:44,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 22:57:44,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:57:44,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:57:44,478 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:57:44,478 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 22:57:44,478 INFO L794 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 329#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 330#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 337#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 339#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 328#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 334#L639-1 assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 335#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 338#L630 assume append_#t~mem3.base != 0 || append_#t~mem3.offset != 0;call append_#t~mem4.base, append_#t~mem4.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem5.base, append_#t~mem5.offset := read~$Pointer$(append_#t~mem4.base, 4 + append_#t~mem4.offset, 4);append_#t~ite7.base, append_#t~ite7.offset := append_#t~mem5.base, append_#t~mem5.offset; 325#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 326#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 332#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 333#L639-4 assume main_~length~0 > 0;call main_#t~mem10.base, main_#t~mem10.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_#t~mem10.base, main_#t~mem10.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem10.base, main_#t~mem10.offset;call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_#t~mem12.base, 4 + main_#t~mem12.offset, 4);call ULTIMATE.dealloc(main_#t~mem13.base, main_#t~mem13.offset);havoc main_#t~mem12.base, main_#t~mem12.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem14.base, main_#t~mem14.offset);havoc main_#t~mem14.base, main_#t~mem14.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post15 := main_~length~0;main_~length~0 := main_#t~post15 - 1;havoc main_#t~post15; 331#L650-1 [2019-01-01 22:57:44,478 INFO L796 eck$LassoCheckResult]: Loop: 331#L650-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 331#L650-1 [2019-01-01 22:57:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:44,479 INFO L82 PathProgramCache]: Analyzing trace with hash -317371272, now seen corresponding path program 1 times [2019-01-01 22:57:44,479 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:44,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:44,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:44,480 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:57:44,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:44,552 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 4 times [2019-01-01 22:57:44,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:44,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:44,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:44,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:57:44,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:44,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:57:44,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1248574802, now seen corresponding path program 1 times [2019-01-01 22:57:44,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:57:44,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:57:44,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:44,565 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:57:44,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:57:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:57:44,921 WARN L181 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-01-01 22:57:51,001 WARN L181 SmtUtils]: Spent 6.00 s on a formula simplification. DAG size of input: 320 DAG size of output: 254 [2019-01-01 22:57:52,245 WARN L181 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 160 [2019-01-01 22:57:52,252 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:57:52,252 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:57:52,252 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:57:52,252 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:57:52,252 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:57:52,252 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:57:52,252 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:57:52,253 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:57:52,253 INFO L131 ssoRankerPreferences]: Filename of dumped script: test-0232_1_true-valid-memsafety_true-termination.i_Iteration6_Lasso [2019-01-01 22:57:52,253 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:57:52,253 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:57:52,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:52,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:57:53,027 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:286) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:612) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.access$16(LassoCheck.java:539) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:958) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:865) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:476) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:384) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-01-01 22:57:53,030 INFO L168 Benchmark]: Toolchain (without parser) took 28675.54 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 375.4 MB). Free memory was 952.7 MB in the beginning and 810.2 MB in the end (delta: 142.5 MB). Peak memory consumption was 517.9 MB. Max. memory is 11.5 GB. [2019-01-01 22:57:53,031 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:57:53,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2019-01-01 22:57:53,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.44 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. [2019-01-01 22:57:53,033 INFO L168 Benchmark]: Boogie Preprocessor took 38.68 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. [2019-01-01 22:57:53,034 INFO L168 Benchmark]: RCFGBuilder took 523.46 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-01-01 22:57:53,035 INFO L168 Benchmark]: BuchiAutomizer took 27337.36 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.7 MB). Free memory was 1.1 GB in the beginning and 810.2 MB in the end (delta: 287.1 MB). Peak memory consumption was 518.8 MB. Max. memory is 11.5 GB. [2019-01-01 22:57:53,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 706.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.44 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. * Boogie Preprocessor took 38.68 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 523.46 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 27337.36 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.7 MB). Free memory was 1.1 GB in the beginning and 810.2 MB in the end (delta: 287.1 MB). Peak memory consumption was 518.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...