./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/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 323a368457db0fbf1a75769ccf65710269e3f40c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:02:02,902 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:02:02,903 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:02:02,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:02:02,911 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:02:02,912 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:02:02,913 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:02:02,914 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:02:02,915 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:02:02,915 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:02:02,916 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:02:02,916 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:02:02,917 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:02:02,917 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:02:02,918 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:02:02,919 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:02:02,919 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:02:02,920 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:02:02,922 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:02:02,923 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:02:02,923 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:02:02,924 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:02:02,926 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:02:02,926 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:02:02,926 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:02:02,926 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:02:02,927 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:02:02,928 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:02:02,928 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:02:02,929 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:02:02,929 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:02:02,929 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:02:02,930 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:02:02,930 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:02:02,930 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:02:02,931 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:02:02,931 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 08:02:02,941 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:02:02,941 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:02:02,941 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:02:02,942 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 08:02:02,942 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 08:02:02,942 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 08:02:02,942 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 08:02:02,942 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 08:02:02,942 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 08:02:02,942 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 08:02:02,942 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 08:02:02,943 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:02:02,943 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:02:02,943 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:02:02,943 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:02:02,943 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:02:02,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:02:02,944 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:02:02,944 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:02:02,944 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:02:02,944 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:02:02,944 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:02:02,944 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:02:02,945 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:02:02,945 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:02:02,945 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:02:02,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:02:02,945 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:02:02,945 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:02:02,945 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:02:02,945 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 08:02:02,946 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:02:02,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:02:02,946 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 08:02:02,946 INFO L133 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/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/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 -> 323a368457db0fbf1a75769ccf65710269e3f40c [2018-11-10 08:02:02,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:02:02,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:02:02,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:02:02,979 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:02:02,979 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:02:02,980 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/../../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl_false-unreach-call.i [2018-11-10 08:02:03,017 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/data/d8dbd9d73/fb47268105ae44f5aec83a3bf2e76ad3/FLAG3cb1e8bdc [2018-11-10 08:02:03,450 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:02:03,450 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl_false-unreach-call.i [2018-11-10 08:02:03,459 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/data/d8dbd9d73/fb47268105ae44f5aec83a3bf2e76ad3/FLAG3cb1e8bdc [2018-11-10 08:02:03,467 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/data/d8dbd9d73/fb47268105ae44f5aec83a3bf2e76ad3 [2018-11-10 08:02:03,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:02:03,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:02:03,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:02:03,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:02:03,472 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:02:03,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49867e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03, skipping insertion in model container [2018-11-10 08:02:03,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:02:03,507 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:02:03,687 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:02:03,695 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:02:03,731 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:02:03,760 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:02:03,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03 WrapperNode [2018-11-10 08:02:03,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:02:03,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:02:03,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:02:03,761 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:02:03,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:02:03,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:02:03,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:02:03,838 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:02:03,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... [2018-11-10 08:02:03,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:02:03,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:02:03,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:02:03,869 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:02:03,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/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 [2018-11-10 08:02:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure sl_random_insert [2018-11-10 08:02:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_random_insert [2018-11-10 08:02:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 08:02:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 08:02:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:02:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:02:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:02:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:02:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure create_sl_with_head_and_tail [2018-11-10 08:02:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sl_with_head_and_tail [2018-11-10 08:02:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sl [2018-11-10 08:02:03,907 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sl [2018-11-10 08:02:03,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:02:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:02:04,281 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:02:04,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:04 BoogieIcfgContainer [2018-11-10 08:02:04,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:02:04,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:02:04,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:02:04,285 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:02:04,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:02:03" (1/3) ... [2018-11-10 08:02:04,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e99d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:02:04, skipping insertion in model container [2018-11-10 08:02:04,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:03" (2/3) ... [2018-11-10 08:02:04,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e99d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:02:04, skipping insertion in model container [2018-11-10 08:02:04,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:04" (3/3) ... [2018-11-10 08:02:04,288 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_and_skiplist_2lvl_false-unreach-call.i [2018-11-10 08:02:04,295 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:02:04,301 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:02:04,313 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:02:04,336 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:02:04,336 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:02:04,336 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:02:04,336 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:02:04,336 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:02:04,336 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:02:04,336 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:02:04,336 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:02:04,346 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-11-10 08:02:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 08:02:04,350 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:04,350 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:04,352 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:02:04,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:04,356 INFO L82 PathProgramCache]: Analyzing trace with hash 2039175712, now seen corresponding path program 1 times [2018-11-10 08:02:04,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:04,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:04,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:04,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:04,392 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:04,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:04,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:04,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:02:04,456 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:04,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 08:02:04,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 08:02:04,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:02:04,468 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-11-10 08:02:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:04,484 INFO L93 Difference]: Finished difference Result 103 states and 134 transitions. [2018-11-10 08:02:04,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 08:02:04,485 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-10 08:02:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:04,492 INFO L225 Difference]: With dead ends: 103 [2018-11-10 08:02:04,492 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 08:02:04,495 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:02:04,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 08:02:04,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 08:02:04,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 08:02:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-10 08:02:04,523 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2018-11-10 08:02:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:04,524 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-10 08:02:04,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 08:02:04,524 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-10 08:02:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:02:04,524 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:04,524 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:04,525 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:02:04,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:04,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1147722002, now seen corresponding path program 1 times [2018-11-10 08:02:04,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:04,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:04,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:04,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:04,526 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:04,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:04,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 08:02:04,623 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:02:04,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:02:04,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:02:04,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:02:04,625 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 5 states. [2018-11-10 08:02:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:04,706 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2018-11-10 08:02:04,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:02:04,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-10 08:02:04,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:04,708 INFO L225 Difference]: With dead ends: 38 [2018-11-10 08:02:04,708 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 08:02:04,709 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 08:02:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 08:02:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2018-11-10 08:02:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 08:02:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-11-10 08:02:04,713 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 16 [2018-11-10 08:02:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:04,714 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-11-10 08:02:04,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:02:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-11-10 08:02:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 08:02:04,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:04,715 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:04,715 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:02:04,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:04,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1169284214, now seen corresponding path program 1 times [2018-11-10 08:02:04,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:04,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:04,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:04,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:04,717 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:04,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 08:02:04,857 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 08:02:04,858 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-11-10 08:02:04,859 INFO L202 CegarAbsIntRunner]: [56], [57], [78], [84], [86], [90], [92], [95], [109], [113], [119], [122], [124], [127], [129], [153], [154], [155] [2018-11-10 08:02:04,892 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 08:02:04,893 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 08:02:05,389 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 08:02:05,391 INFO L272 AbstractInterpreter]: Visited 18 different actions 30 times. Merged at 6 different actions 12 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 55 variables. [2018-11-10 08:02:05,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:05,412 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 08:02:05,412 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 08:02:05,412 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 08:02:05,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:05,422 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 08:02:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:05,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:02:05,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 08:02:05,510 INFO L477 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 8 treesize of output 7 [2018-11-10 08:02:05,510 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,512 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 08:02:05,524 INFO L477 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 8 treesize of output 7 [2018-11-10 08:02:05,524 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,529 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,535 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,535 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2018-11-10 08:02:05,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 08:02:05,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-11-10 08:02:05,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 08:02:05,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-11-10 08:02:05,587 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,588 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,603 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-10 08:02:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:05,610 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 08:02:05,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-10 08:02:05,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-11-10 08:02:05,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,697 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-10 08:02:05,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-11-10 08:02:05,702 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,709 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:02:05,720 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 08:02:05,721 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:39, output treesize:7 [2018-11-10 08:02:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:05,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 08:02:05,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 8 [2018-11-10 08:02:05,773 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 08:02:05,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 08:02:05,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 08:02:05,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:02:05,774 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 6 states. [2018-11-10 08:02:05,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:05,841 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-10 08:02:05,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:02:05,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-10 08:02:05,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:02:05,843 INFO L225 Difference]: With dead ends: 44 [2018-11-10 08:02:05,843 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 08:02:05,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-10 08:02:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 08:02:05,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2018-11-10 08:02:05,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 08:02:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-10 08:02:05,847 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 20 [2018-11-10 08:02:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:02:05,847 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-10 08:02:05,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 08:02:05,848 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-10 08:02:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 08:02:05,848 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:02:05,848 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:05,848 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:02:05,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:05,849 INFO L82 PathProgramCache]: Analyzing trace with hash 70967683, now seen corresponding path program 1 times [2018-11-10 08:02:05,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:02:05,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:05,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:05,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:05,850 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:02:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:05,898 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 08:02:05,908 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,910 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,911 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,911 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,911 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,911 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,911 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,912 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,912 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,912 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,912 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,913 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,913 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,913 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,914 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,914 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,914 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,914 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,915 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,915 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,915 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,916 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,916 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,916 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:02:05 BoogieIcfgContainer [2018-11-10 08:02:05,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:02:05,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:02:05,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:02:05,927 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:02:05,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:04" (3/4) ... [2018-11-10 08:02:05,929 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 08:02:05,931 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,931 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,931 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,932 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,932 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,932 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,932 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,932 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,932 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,933 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,933 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,933 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,933 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,933 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,934 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,934 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,934 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,934 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,934 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,934 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:05,968 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9ab99e5a-1f49-49c9-b42f-54fb437c117b/bin-2019/utaipan/witness.graphml [2018-11-10 08:02:05,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:02:05,969 INFO L168 Benchmark]: Toolchain (without parser) took 2499.59 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 227.5 MB). Free memory was 956.5 MB in the beginning and 974.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 210.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:05,970 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:02:05,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.33 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 926.9 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:05,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 926.9 MB in the beginning and 1.1 GB in the end (delta: -222.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:05,971 INFO L168 Benchmark]: Boogie Preprocessor took 30.60 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:05,971 INFO L168 Benchmark]: RCFGBuilder took 413.19 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: 57.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:05,971 INFO L168 Benchmark]: TraceAbstraction took 1644.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 979.1 MB in the end (delta: 109.4 MB). Peak memory consumption was 181.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:05,972 INFO L168 Benchmark]: Witness Printer took 41.11 ms. Allocated memory is still 1.3 GB. Free memory was 979.1 MB in the beginning and 974.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:05,974 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.33 ms. Allocated memory is still 1.0 GB. Free memory was 956.5 MB in the beginning and 926.9 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 926.9 MB in the beginning and 1.1 GB in the end (delta: -222.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.60 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 413.19 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: 57.8 MB). Peak memory consumption was 57.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1644.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.4 MB). Free memory was 1.1 GB in the beginning and 979.1 MB in the end (delta: 109.4 MB). Peak memory consumption was 181.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.11 ms. Allocated memory is still 1.3 GB. Free memory was 979.1 MB in the beginning and 974.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 602]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L585] EXPR, FCALL malloc(sizeof(struct node)) [L585] List a = (List) malloc(sizeof(struct node)); [L586] COND FALSE !(a == 0) [L587] List t; [L588] List p = a; [L589] CALL a->h = 2 [L589] RET a->h = 2 [L590] COND TRUE __VERIFIER_nondet_int() [L591] CALL p->h = 1 [L591] RET p->h = 1 [L592] EXPR, FCALL malloc(sizeof(struct node)) [L592] t = (List) malloc(sizeof(struct node)) [L593] COND FALSE !(t == 0) [L594] CALL p->n = t [L594] RET p->n = t [L595] CALL, EXPR p->n [L595] RET, EXPR p->n [L595] p = p->n [L590] COND FALSE !(__VERIFIER_nondet_int()) [L597] CALL p->h = 2 [L597] RET p->h = 2 [L598] CALL p->n = 0 [L598] RET p->n = 0 [L599] p = a [L600] COND TRUE p!=0 [L601] CALL, EXPR p->h [L601] RET, EXPR p->h [L601] COND TRUE p->h != 2 [L602] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 62 locations, 1 error locations. UNSAFE Result, 1.5s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 50 SDslu, 89 SDs, 0 SdLazy, 54 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 9267 SizeOfPredicates, 18 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...