./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ce8a7f5b0345c6213ba7b1864c5b0de301a874d7 .......................................................................................................................................................................................................................................................................................................................................................................... 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:43:56,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:43:56,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:43:56,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:43:56,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:43:56,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:43:56,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:43:56,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:43:56,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:43:56,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:43:56,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:43:56,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:43:56,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:43:56,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:43:56,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:43:56,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:43:56,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:43:56,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:43:56,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:43:56,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:43:56,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:43:56,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:43:56,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:43:56,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:43:56,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:43:56,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:43:56,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:43:56,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:43:56,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:43:56,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:43:56,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:43:56,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:43:56,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:43:56,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:43:56,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:43:56,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:43:56,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:43:56,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:43:56,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:43:56,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:43:56,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:43:56,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:43:56,966 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:43:56,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:43:56,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:43:56,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:43:56,968 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:43:56,968 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:43:56,969 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:43:56,969 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:43:56,969 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:43:56,969 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:43:56,970 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:43:56,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:43:56,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:43:56,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:43:56,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:43:56,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:43:56,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:43:56,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:43:56,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:43:56,972 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:43:56,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:43:56,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:43:56,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:43:56,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:43:56,973 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:43:56,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:43:56,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:43:56,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:43:56,974 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:43:56,975 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:43:56,976 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce8a7f5b0345c6213ba7b1864c5b0de301a874d7 [2020-10-20 06:43:57,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:43:57,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:43:57,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:43:57,224 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:43:57,225 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:43:57,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2020-10-20 06:43:57,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81d2c8ae/7cf7a20d8b3446849361c8437c85610e/FLAG9488b5edb [2020-10-20 06:43:57,872 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:43:57,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2020-10-20 06:43:57,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81d2c8ae/7cf7a20d8b3446849361c8437c85610e/FLAG9488b5edb [2020-10-20 06:43:58,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81d2c8ae/7cf7a20d8b3446849361c8437c85610e [2020-10-20 06:43:58,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:43:58,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:43:58,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:43:58,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:43:58,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:43:58,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5f583a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58, skipping insertion in model container [2020-10-20 06:43:58,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:43:58,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:43:58,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:43:58,534 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:43:58,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:43:58,581 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:43:58,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58 WrapperNode [2020-10-20 06:43:58,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:43:58,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:43:58,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:43:58,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:43:58,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:43:58,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:43:58,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:43:58,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:43:58,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... [2020-10-20 06:43:58,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:43:58,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:43:58,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:43:58,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:43:58,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:43:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:43:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:43:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-20 06:43:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-20 06:43:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-20 06:43:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-20 06:43:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:43:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:43:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:43:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:43:59,007 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:43:59,007 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:43:59,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:59 BoogieIcfgContainer [2020-10-20 06:43:59,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:43:59,010 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:43:59,011 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:43:59,016 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:43:59,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:59,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:43:58" (1/3) ... [2020-10-20 06:43:59,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f7f5cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:43:59, skipping insertion in model container [2020-10-20 06:43:59,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:59,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:43:58" (2/3) ... [2020-10-20 06:43:59,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f7f5cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:43:59, skipping insertion in model container [2020-10-20 06:43:59,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:43:59,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:43:59" (3/3) ... [2020-10-20 06:43:59,021 INFO L373 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex5B.i [2020-10-20 06:43:59,089 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:43:59,089 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:43:59,089 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:43:59,090 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:43:59,090 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:43:59,090 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:43:59,090 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:43:59,090 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:43:59,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-10-20 06:43:59,138 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-20 06:43:59,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:59,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:59,149 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:43:59,149 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:43:59,150 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:43:59,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-10-20 06:43:59,154 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-20 06:43:59,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:59,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:59,155 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:43:59,156 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:43:59,164 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~nondet17, main_#t~mem18, main_#t~mem19, main_#t~short20, main_#t~mem21, main_#t~ret22.base, main_#t~ret22.offset, main_~p1~0.base, main_~p1~0.offset, main_~p2~0.base, main_~p2~0.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnHeap(4);main_~p2~0.base, main_~p2~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(main_#t~nondet16, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet16;call write~int(main_#t~nondet17, main_~p2~0.base, main_~p2~0.offset, 4);havoc main_#t~nondet17;call main_#t~mem18 := read~int(main_~p1~0.base, main_~p1~0.offset, 4);main_#t~short20 := main_#t~mem18 < 0; 11#L76true assume !main_#t~short20;call main_#t~mem19 := read~int(main_~p2~0.base, main_~p2~0.offset, 4);main_#t~short20 := main_#t~mem19 < 0; 8#L76-2true assume !main_#t~short20;havoc main_#t~short20;havoc main_#t~mem18;havoc main_#t~mem19;call main_#t~mem21 := read~int(main_~p2~0.base, main_~p2~0.offset, 4); 20#L79true call main_#t~ret22.base, main_#t~ret22.offset := f(main_~p1~0.base, main_~p1~0.offset, main_#t~mem21);< 9#fENTRYtrue [2020-10-20 06:43:59,165 INFO L796 eck$LassoCheckResult]: Loop: 9#fENTRYtrue ~q.base, ~q.offset := #in~q.base, #in~q.offset;~v := #in~v; 26#L17true assume !(~v < 0);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4);~tmp~0.base, ~tmp~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(1 + ~v, ~tmp~0.base, ~tmp~0.offset, 4); 10#L25true call #t~ret3.base, #t~ret3.offset := g(~tmp~0.base, ~tmp~0.offset);< 28#gENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 15#L47true assume #t~mem8 < 0;havoc #t~mem8;call ULTIMATE.dealloc(~p.base, ~p.offset);call #t~malloc9.base, #t~malloc9.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc9.base, #t~malloc9.offset; 5#gFINALtrue assume true; 25#gEXITtrue >#53#return; 14#L25-1true call #t~ret4.base, #t~ret4.offset := f(#t~ret3.base, #t~ret3.offset, ~v - 1);< 9#fENTRYtrue [2020-10-20 06:43:59,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:59,172 INFO L82 PathProgramCache]: Analyzing trace with hash 60187955, now seen corresponding path program 1 times [2020-10-20 06:43:59,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:59,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587799881] [2020-10-20 06:43:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:59,337 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:59,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:59,389 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:59,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1039736561, now seen corresponding path program 1 times [2020-10-20 06:43:59,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:59,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306125590] [2020-10-20 06:43:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:59,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 06:43:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:43:59,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306125590] [2020-10-20 06:43:59,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:43:59,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:43:59,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500484118] [2020-10-20 06:43:59,559 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:43:59,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:43:59,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:43:59,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:43:59,591 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 6 states. [2020-10-20 06:43:59,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:43:59,733 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2020-10-20 06:43:59,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:43:59,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2020-10-20 06:43:59,740 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-20 06:43:59,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 25 states and 32 transitions. [2020-10-20 06:43:59,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-10-20 06:43:59,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-20 06:43:59,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2020-10-20 06:43:59,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:43:59,764 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-20 06:43:59,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2020-10-20 06:43:59,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-20 06:43:59,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-20 06:43:59,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-10-20 06:43:59,809 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-20 06:43:59,809 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-10-20 06:43:59,810 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:43:59,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2020-10-20 06:43:59,814 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-10-20 06:43:59,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:43:59,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:43:59,817 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:43:59,818 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:43:59,818 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 92#L-1 havoc main_#res;havoc main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~nondet16, main_#t~nondet17, main_#t~mem18, main_#t~mem19, main_#t~short20, main_#t~mem21, main_#t~ret22.base, main_#t~ret22.offset, main_~p1~0.base, main_~p1~0.offset, main_~p2~0.base, main_~p2~0.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnHeap(4);main_~p1~0.base, main_~p1~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call main_#t~malloc15.base, main_#t~malloc15.offset := #Ultimate.allocOnHeap(4);main_~p2~0.base, main_~p2~0.offset := main_#t~malloc15.base, main_#t~malloc15.offset;call write~int(main_#t~nondet16, main_~p1~0.base, main_~p1~0.offset, 4);havoc main_#t~nondet16;call write~int(main_#t~nondet17, main_~p2~0.base, main_~p2~0.offset, 4);havoc main_#t~nondet17;call main_#t~mem18 := read~int(main_~p1~0.base, main_~p1~0.offset, 4);main_#t~short20 := main_#t~mem18 < 0; 93#L76 assume !main_#t~short20;call main_#t~mem19 := read~int(main_~p2~0.base, main_~p2~0.offset, 4);main_#t~short20 := main_#t~mem19 < 0; 94#L76-2 assume !main_#t~short20;havoc main_#t~short20;havoc main_#t~mem18;havoc main_#t~mem19;call main_#t~mem21 := read~int(main_~p2~0.base, main_~p2~0.offset, 4); 74#L79 call main_#t~ret22.base, main_#t~ret22.offset := f(main_~p1~0.base, main_~p1~0.offset, main_#t~mem21);< 75#fENTRY [2020-10-20 06:43:59,819 INFO L796 eck$LassoCheckResult]: Loop: 75#fENTRY ~q.base, ~q.offset := #in~q.base, #in~q.offset;~v := #in~v; 91#L17 assume !(~v < 0);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(4);~tmp~0.base, ~tmp~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(1 + ~v, ~tmp~0.base, ~tmp~0.offset, 4); 82#L25 call #t~ret3.base, #t~ret3.offset := g(~tmp~0.base, ~tmp~0.offset);< 78#gENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 96#L47 assume !(#t~mem8 < 0);havoc #t~mem8;call #t~mem10 := read~int(~p.base, ~p.offset, 4);#t~post11 := #t~mem10;call write~int(#t~post11 - 1, ~p.base, ~p.offset, 4);havoc #t~post11;havoc #t~mem10; 81#L55 call #t~ret12.base, #t~ret12.offset := g(~p.base, ~p.offset);< 78#gENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem8 := read~int(~p.base, ~p.offset, 4); 96#L47 assume #t~mem8 < 0;havoc #t~mem8;call ULTIMATE.dealloc(~p.base, ~p.offset);call #t~malloc9.base, #t~malloc9.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc9.base, #t~malloc9.offset; 87#gFINAL assume true; 88#gEXIT >#59#return; 83#L55-1 ~np~0.base, ~np~0.offset := #t~ret12.base, #t~ret12.offset;havoc #t~ret12.base, #t~ret12.offset;call ULTIMATE.dealloc(~np~0.base, ~np~0.offset);call #t~malloc13.base, #t~malloc13.offset := #Ultimate.allocOnHeap(4);#res.base, #res.offset := #t~malloc13.base, #t~malloc13.offset; 84#gFINAL assume true; 98#gEXIT >#53#return; 77#L25-1 call #t~ret4.base, #t~ret4.offset := f(#t~ret3.base, #t~ret3.offset, ~v - 1);< 75#fENTRY [2020-10-20 06:43:59,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:59,819 INFO L82 PathProgramCache]: Analyzing trace with hash 60187955, now seen corresponding path program 2 times [2020-10-20 06:43:59,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:59,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259719685] [2020-10-20 06:43:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:59,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:43:59,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:43:59,910 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:43:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:43:59,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1707443993, now seen corresponding path program 1 times [2020-10-20 06:43:59,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:43:59,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060397323] [2020-10-20 06:43:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:43:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:43:59,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 06:43:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:44:00,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 06:44:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:44:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:44:00,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060397323] [2020-10-20 06:44:00,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413824389] [2020-10-20 06:44:00,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:44:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:44:00,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-20 06:44:00,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:44:00,317 INFO L384 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 6 treesize of output 5 [2020-10-20 06:44:00,318 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:44:00,337 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:44:00,346 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2020-10-20 06:44:00,348 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:44:00,361 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:44:00,376 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 06:44:00,377 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:20 [2020-10-20 06:44:27,381 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 32 [2020-10-20 06:44:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:44:27,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:44:27,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-10-20 06:44:27,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265275274] [2020-10-20 06:44:27,434 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:44:27,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:44:27,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-20 06:44:27,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=205, Unknown=2, NotChecked=0, Total=240 [2020-10-20 06:44:27,435 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. cyclomatic complexity: 10 Second operand 16 states. [2020-10-20 06:45:11,048 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) stderr output: (error "out of memory") [2020-10-20 06:45:11,049 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1064) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:966) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:960) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:535) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:382) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 39 more [2020-10-20 06:45:11,056 INFO L168 Benchmark]: Toolchain (without parser) took 72769.66 ms. Allocated memory was 43.5 MB in the beginning and 52.4 MB in the end (delta: 8.9 MB). Free memory was 24.0 MB in the beginning and 22.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:11,058 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.3 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:45:11,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.02 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 23.1 MB in the beginning and 24.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:11,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.76 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 22.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:11,064 INFO L168 Benchmark]: Boogie Preprocessor took 27.04 ms. Allocated memory is still 44.0 MB. Free memory was 22.8 MB in the beginning and 21.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:11,065 INFO L168 Benchmark]: RCFGBuilder took 362.42 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 21.2 MB in the beginning and 19.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:11,067 INFO L168 Benchmark]: BuchiAutomizer took 72041.49 ms. Allocated memory was 46.1 MB in the beginning and 52.4 MB in the end (delta: 6.3 MB). Free memory was 19.7 MB in the beginning and 22.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:45:11,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.3 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 290.02 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 23.1 MB in the beginning and 24.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 36.76 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 22.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.04 ms. Allocated memory is still 44.0 MB. Free memory was 22.8 MB in the beginning and 21.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 362.42 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 21.2 MB in the beginning and 19.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 72041.49 ms. Allocated memory was 46.1 MB in the beginning and 52.4 MB in the end (delta: 6.3 MB). Free memory was 19.7 MB in the beginning and 22.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...