./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/nested_structure_ptr_true-termination.c_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/nested_structure_ptr_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/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 ba8c3ab7692cdfe311be2a8c99aab063ad0366de ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:06:57,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:06:57,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:06:57,827 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:06:57,827 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:06:57,828 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:06:57,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:06:57,830 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:06:57,831 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:06:57,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:06:57,832 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:06:57,832 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:06:57,833 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:06:57,834 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:06:57,834 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:06:57,835 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:06:57,836 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:06:57,837 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:06:57,838 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:06:57,839 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:06:57,840 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:06:57,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:06:57,842 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:06:57,843 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:06:57,843 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:06:57,843 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:06:57,844 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:06:57,845 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:06:57,845 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:06:57,846 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:06:57,846 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:06:57,847 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:06:57,847 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:06:57,847 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:06:57,848 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:06:57,848 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:06:57,848 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 02:06:57,859 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:06:57,859 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:06:57,860 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:06:57,860 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:06:57,860 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:06:57,860 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:06:57,860 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:06:57,860 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 02:06:57,861 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:06:57,861 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:06:57,861 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 02:06:57,861 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 02:06:57,861 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:06:57,862 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:06:57,862 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:06:57,862 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:06:57,862 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:06:57,862 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:06:57,862 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:06:57,863 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:06:57,863 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:06:57,863 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:06:57,863 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:06:57,863 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:06:57,863 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:06:57,863 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:06:57,864 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:06:57,864 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:06:57,864 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:06:57,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:06:57,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:06:57,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:06:57,865 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:06:57,865 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 02:06:57,865 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:06:57,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:06:57,865 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 02:06:57,865 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_910d9795-9240-4642-8d03-c0e18c11c12d/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 -> ba8c3ab7692cdfe311be2a8c99aab063ad0366de [2018-11-23 02:06:57,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:06:57,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:06:57,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:06:57,902 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:06:57,902 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:06:57,903 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/nested_structure_ptr_true-termination.c_true-unreach-call.i [2018-11-23 02:06:57,944 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/data/cab9fc875/2576588613fa422a88efe8fae906371c/FLAG5dbaeafdc [2018-11-23 02:06:58,241 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:06:58,242 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/sv-benchmarks/c/ldv-regression/nested_structure_ptr_true-termination.c_true-unreach-call.i [2018-11-23 02:06:58,245 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/data/cab9fc875/2576588613fa422a88efe8fae906371c/FLAG5dbaeafdc [2018-11-23 02:06:58,253 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/data/cab9fc875/2576588613fa422a88efe8fae906371c [2018-11-23 02:06:58,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:06:58,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:06:58,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:06:58,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:06:58,259 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:06:58,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22877cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58, skipping insertion in model container [2018-11-23 02:06:58,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:06:58,279 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:06:58,385 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:06:58,392 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:06:58,402 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:06:58,412 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:06:58,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58 WrapperNode [2018-11-23 02:06:58,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:06:58,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:06:58,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:06:58,413 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:06:58,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:06:58,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:06:58,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:06:58,431 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:06:58,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... [2018-11-23 02:06:58,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:06:58,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:06:58,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:06:58,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:06:58,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/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 [2018-11-23 02:06:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 02:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 02:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 02:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:06:58,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-23 02:06:58,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-23 02:06:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:06:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 02:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 02:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:06:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:06:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:06:58,676 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:06:58,676 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 02:06:58,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:58 BoogieIcfgContainer [2018-11-23 02:06:58,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:06:58,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:06:58,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:06:58,679 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:06:58,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:06:58" (1/3) ... [2018-11-23 02:06:58,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad68fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:58, skipping insertion in model container [2018-11-23 02:06:58,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:58" (2/3) ... [2018-11-23 02:06:58,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad68fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:58, skipping insertion in model container [2018-11-23 02:06:58,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:58" (3/3) ... [2018-11-23 02:06:58,682 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr_true-termination.c_true-unreach-call.i [2018-11-23 02:06:58,688 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:06:58,693 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:06:58,703 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:06:58,724 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:06:58,725 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:06:58,725 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:06:58,725 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:06:58,725 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:06:58,725 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:06:58,725 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:06:58,725 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:06:58,736 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 02:06:58,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 02:06:58,740 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:06:58,741 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:06:58,743 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:06:58,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:06:58,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1215743292, now seen corresponding path program 1 times [2018-11-23 02:06:58,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:06:58,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:06:58,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:06:58,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:06:58,779 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:06:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:06:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:06:58,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:06:58,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 02:06:58,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:06:58,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 02:06:58,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 02:06:58,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:06:58,945 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-23 02:06:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:06:58,961 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-23 02:06:58,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 02:06:58,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 02:06:58,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:06:58,966 INFO L225 Difference]: With dead ends: 22 [2018-11-23 02:06:58,967 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:06:58,969 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:06:58,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:06:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:06:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:06:58,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:06:58,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-23 02:06:58,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:06:58,990 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:06:58,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 02:06:58,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:06:58,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:06:58,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:06:59,010 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:06:59,011 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:06:59,011 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:06:59,011 INFO L448 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 8 11) no Hoare annotation was computed. [2018-11-23 02:06:59,011 INFO L448 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 8 11) no Hoare annotation was computed. [2018-11-23 02:06:59,011 INFO L451 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 8 11) the Hoare annotation is: true [2018-11-23 02:06:59,011 INFO L448 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-23 02:06:59,011 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:06:59,012 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 02:06:59,012 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:06:59,012 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:06:59,012 INFO L448 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-23 02:06:59,012 INFO L444 ceAbstractionStarter]: At program point L32-2(line 32) the Hoare annotation is: false [2018-11-23 02:06:59,012 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 25 34) the Hoare annotation is: true [2018-11-23 02:06:59,014 INFO L448 ceAbstractionStarter]: For program point L32-3(line 32) no Hoare annotation was computed. [2018-11-23 02:06:59,014 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 25 34) no Hoare annotation was computed. [2018-11-23 02:06:59,014 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 25 34) no Hoare annotation was computed. [2018-11-23 02:06:59,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:06:59 BoogieIcfgContainer [2018-11-23 02:06:59,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:06:59,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:06:59,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:06:59,017 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:06:59,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:58" (3/4) ... [2018-11-23 02:06:59,020 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:06:59,024 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:06:59,024 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2018-11-23 02:06:59,024 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:06:59,027 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 02:06:59,027 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 02:06:59,027 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 02:06:59,027 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 02:06:59,059 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_910d9795-9240-4642-8d03-c0e18c11c12d/bin-2019/utaipan/witness.graphml [2018-11-23 02:06:59,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:06:59,059 INFO L168 Benchmark]: Toolchain (without parser) took 803.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:06:59,060 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-23 02:06:59,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.16 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:06:59,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.73 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:06:59,061 INFO L168 Benchmark]: Boogie Preprocessor took 55.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:06:59,062 INFO L168 Benchmark]: RCFGBuilder took 189.96 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: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:06:59,062 INFO L168 Benchmark]: TraceAbstraction took 339.13 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-23 02:06:59,063 INFO L168 Benchmark]: Witness Printer took 42.06 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. [2018-11-23 02:06:59,066 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 156.16 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.73 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 189.96 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: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 339.13 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 42.06 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: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 8 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...