./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99300654c640d2c4f7b9514479be090401414cf7 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:36:03,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:03,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:03,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:03,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:03,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:03,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:03,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:03,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:03,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:03,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:03,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:03,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:03,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:03,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:03,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:03,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:03,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:03,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:03,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:03,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:03,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:03,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:03,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:03,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:03,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:03,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:03,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:03,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:03,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:03,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:03,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:03,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:03,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:03,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:03,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:03,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:03,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:03,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:03,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:03,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:03,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:36:03,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:03,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:03,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:03,908 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:36:03,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:36:03,908 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:36:03,909 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:36:03,909 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:36:03,909 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:36:03,909 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:36:03,909 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:36:03,910 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:36:03,910 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:36:03,910 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:36:03,910 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:36:03,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:03,911 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:36:03,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:36:03,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:36:03,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:03,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:03,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:03,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:03,912 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:36:03,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:03,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:03,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:03,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:03,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:36:03,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:03,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:03,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:03,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:03,914 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:36:03,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:36:03,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:03,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:36:03,915 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan 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(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 99300654c640d2c4f7b9514479be090401414cf7 [2019-11-26 02:36:04,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:04,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:04,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:04,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:04,075 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:04,076 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/../../sv-benchmarks/c/ldv-regression/rule60_list.i [2019-11-26 02:36:04,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/data/b8e4570e0/beea9756de2342beb1949bd6b0535ef2/FLAG59746f77f [2019-11-26 02:36:04,631 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:04,631 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/sv-benchmarks/c/ldv-regression/rule60_list.i [2019-11-26 02:36:04,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/data/b8e4570e0/beea9756de2342beb1949bd6b0535ef2/FLAG59746f77f [2019-11-26 02:36:05,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/data/b8e4570e0/beea9756de2342beb1949bd6b0535ef2 [2019-11-26 02:36:05,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:05,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:05,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:05,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:05,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:05,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a15ffbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05, skipping insertion in model container [2019-11-26 02:36:05,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:05,196 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:05,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:05,536 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:05,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:05,661 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:05,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05 WrapperNode [2019-11-26 02:36:05,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:05,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:05,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:05,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:05,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:05,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:05,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:05,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:05,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... [2019-11-26 02:36:05,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:05,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:05,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:05,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:05,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:05,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:36:05,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:36:05,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:36:05,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:36:05,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 02:36:05,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:36:05,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:05,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:06,133 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:06,133 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-26 02:36:06,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:06 BoogieIcfgContainer [2019-11-26 02:36:06,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:06,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:36:06,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:36:06,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:36:06,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:36:05" (1/3) ... [2019-11-26 02:36:06,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b25ae23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:06, skipping insertion in model container [2019-11-26 02:36:06,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:05" (2/3) ... [2019-11-26 02:36:06,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b25ae23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:06, skipping insertion in model container [2019-11-26 02:36:06,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:06" (3/3) ... [2019-11-26 02:36:06,141 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2019-11-26 02:36:06,154 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:36:06,159 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:36:06,166 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:36:06,186 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:36:06,186 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:36:06,186 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:36:06,186 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:36:06,186 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:36:06,187 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:36:06,187 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:36:06,187 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:36:06,197 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-26 02:36:06,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:36:06,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:06,202 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:36:06,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:06,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:06,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2447989, now seen corresponding path program 1 times [2019-11-26 02:36:06,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:06,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922858521] [2019-11-26 02:36:06,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:06,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922858521] [2019-11-26 02:36:06,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:06,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:36:06,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323850575] [2019-11-26 02:36:06,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:36:06,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:06,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:36:06,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:36:06,422 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-11-26 02:36:06,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:06,481 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-11-26 02:36:06,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:36:06,482 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-26 02:36:06,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:06,490 INFO L225 Difference]: With dead ends: 27 [2019-11-26 02:36:06,490 INFO L226 Difference]: Without dead ends: 11 [2019-11-26 02:36:06,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:36:06,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-26 02:36:06,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-26 02:36:06,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-26 02:36:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-11-26 02:36:06,519 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4 [2019-11-26 02:36:06,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:06,520 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-11-26 02:36:06,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:36:06,520 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-11-26 02:36:06,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:36:06,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:06,521 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:36:06,521 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:06,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:06,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1942470271, now seen corresponding path program 1 times [2019-11-26 02:36:06,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:06,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656790184] [2019-11-26 02:36:06,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:06,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656790184] [2019-11-26 02:36:06,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:06,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:36:06,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268331485] [2019-11-26 02:36:06,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:36:06,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:06,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:36:06,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:36:06,639 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 5 states. [2019-11-26 02:36:06,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:06,693 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-11-26 02:36:06,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:36:06,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-11-26 02:36:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:06,694 INFO L225 Difference]: With dead ends: 11 [2019-11-26 02:36:06,694 INFO L226 Difference]: Without dead ends: 9 [2019-11-26 02:36:06,695 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:36:06,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-26 02:36:06,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-26 02:36:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-26 02:36:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-11-26 02:36:06,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2019-11-26 02:36:06,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:06,696 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-11-26 02:36:06,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:36:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-11-26 02:36:06,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:36:06,697 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:06,697 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:36:06,697 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:06,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1596812770, now seen corresponding path program 1 times [2019-11-26 02:36:06,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:06,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085010009] [2019-11-26 02:36:06,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:36:06,834 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085010009] [2019-11-26 02:36:06,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:06,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:36:06,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012229277] [2019-11-26 02:36:06,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:36:06,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:06,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:36:06,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:36:06,835 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 5 states. [2019-11-26 02:36:06,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:06,883 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-11-26 02:36:06,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:36:06,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-26 02:36:06,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:06,883 INFO L225 Difference]: With dead ends: 9 [2019-11-26 02:36:06,883 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:36:06,884 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:36:06,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:36:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:36:06,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:36:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:36:06,885 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-26 02:36:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:06,885 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:36:06,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:36:06,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:36:06,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:36:06,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:36:06,916 INFO L444 ceAbstractionStarter]: For program point L867-2(line 867) no Hoare annotation was computed. [2019-11-26 02:36:06,916 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:36:06,916 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-26 02:36:06,917 INFO L444 ceAbstractionStarter]: For program point L872(line 872) no Hoare annotation was computed. [2019-11-26 02:36:06,917 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:36:06,917 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-26 02:36:06,917 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-26 02:36:06,917 INFO L444 ceAbstractionStarter]: For program point L881(lines 881 886) no Hoare annotation was computed. [2019-11-26 02:36:06,917 INFO L440 ceAbstractionStarter]: At program point L881-1(lines 881 886) the Hoare annotation is: (and (= 0 ULTIMATE.start_main_~dev~0.offset) (= |~#head~0.offset| 0)) [2019-11-26 02:36:06,917 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-26 02:36:06,918 INFO L444 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-26 02:36:06,918 INFO L444 ceAbstractionStarter]: For program point L4(lines 1 888) no Hoare annotation was computed. [2019-11-26 02:36:06,918 INFO L444 ceAbstractionStarter]: For program point L6-2(line 6) no Hoare annotation was computed. [2019-11-26 02:36:06,918 INFO L444 ceAbstractionStarter]: For program point L867(line 867) no Hoare annotation was computed. [2019-11-26 02:36:06,918 INFO L444 ceAbstractionStarter]: For program point L4-1(lines 1 888) no Hoare annotation was computed. [2019-11-26 02:36:06,918 INFO L444 ceAbstractionStarter]: For program point L4-2(lines 1 888) no Hoare annotation was computed. [2019-11-26 02:36:06,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:36:06 BoogieIcfgContainer [2019-11-26 02:36:06,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:36:06,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:06,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:06,938 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:06,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:06" (3/4) ... [2019-11-26 02:36:06,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:36:06,950 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:36:06,950 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:36:06,950 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:36:06,994 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9663eb9b-ad24-4d73-8148-86dc29ae28c0/bin/utaipan/witness.graphml [2019-11-26 02:36:06,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:06,996 INFO L168 Benchmark]: Toolchain (without parser) took 1848.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -115.9 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:06,996 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:07,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -208.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:07,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:07,004 INFO L168 Benchmark]: Boogie Preprocessor took 31.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:07,005 INFO L168 Benchmark]: RCFGBuilder took 398.17 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:07,007 INFO L168 Benchmark]: TraceAbstraction took 800.11 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: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:07,007 INFO L168 Benchmark]: Witness Printer took 56.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:07,009 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 515.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -208.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 398.17 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 800.11 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: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. * Witness Printer took 56.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: 0 == dev && head == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 28 SDslu, 12 SDs, 0 SdLazy, 25 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 7 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 545 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...