./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test02_false-unreach-call_true-termination.c --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_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test02_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/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 4dac52ac01526cd7c5a6c950ddf0191864040fa0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-aa41828 [2018-11-23 06:39:56,811 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:39:56,812 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:39:56,821 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:39:56,821 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:39:56,822 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:39:56,823 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:39:56,824 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:39:56,825 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:39:56,826 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:39:56,826 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:39:56,826 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:39:56,827 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:39:56,828 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:39:56,828 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:39:56,829 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:39:56,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:39:56,831 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:39:56,832 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:39:56,833 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:39:56,834 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:39:56,835 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:39:56,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:39:56,837 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:39:56,837 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:39:56,838 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:39:56,838 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:39:56,839 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:39:56,839 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:39:56,840 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:39:56,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:39:56,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:39:56,841 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:39:56,841 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:39:56,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:39:56,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:39:56,842 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 06:39:56,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:39:56,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:39:56,853 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:39:56,854 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:39:56,854 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:39:56,854 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:39:56,854 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:39:56,854 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 06:39:56,854 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:39:56,854 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:39:56,855 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 06:39:56,855 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 06:39:56,855 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:39:56,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:39:56,856 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:39:56,856 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:39:56,856 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:39:56,856 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:39:56,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:39:56,856 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:39:56,856 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:39:56,857 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:39:56,857 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:39:56,857 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:39:56,857 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:39:56,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:39:56,857 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:39:56,857 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:39:56,858 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:39:56,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:39:56,858 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:39:56,858 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:39:56,858 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:39:56,858 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 06:39:56,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:39:56,859 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:39:56,859 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 06:39:56,859 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_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/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 -> 4dac52ac01526cd7c5a6c950ddf0191864040fa0 [2018-11-23 06:39:56,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:39:56,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:39:56,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:39:56,891 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:39:56,891 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:39:56,892 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test02_false-unreach-call_true-termination.c [2018-11-23 06:39:56,931 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/data/c19b4b78f/d770ba189e914ad9907afc23dec5c967/FLAG04fa4a098 [2018-11-23 06:39:57,321 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:39:57,322 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/sv-benchmarks/c/ldv-regression/test02_false-unreach-call_true-termination.c [2018-11-23 06:39:57,325 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/data/c19b4b78f/d770ba189e914ad9907afc23dec5c967/FLAG04fa4a098 [2018-11-23 06:39:57,337 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/data/c19b4b78f/d770ba189e914ad9907afc23dec5c967 [2018-11-23 06:39:57,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:39:57,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:39:57,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:39:57,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:39:57,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:39:57,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd9ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57, skipping insertion in model container [2018-11-23 06:39:57,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:39:57,364 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:39:57,477 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:39:57,481 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:39:57,489 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:39:57,501 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:39:57,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57 WrapperNode [2018-11-23 06:39:57,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:39:57,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:39:57,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:39:57,502 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:39:57,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:39:57,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:39:57,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:39:57,516 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:39:57,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... [2018-11-23 06:39:57,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:39:57,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:39:57,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:39:57,529 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:39:57,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/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 06:39:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 06:39:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 06:39:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 06:39:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:39:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:39:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 06:39:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 06:39:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 06:39:57,682 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:39:57,682 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 06:39:57,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:57 BoogieIcfgContainer [2018-11-23 06:39:57,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:39:57,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:39:57,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:39:57,685 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:39:57,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:39:57" (1/3) ... [2018-11-23 06:39:57,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556740c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:39:57, skipping insertion in model container [2018-11-23 06:39:57,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:39:57" (2/3) ... [2018-11-23 06:39:57,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556740c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:39:57, skipping insertion in model container [2018-11-23 06:39:57,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:57" (3/3) ... [2018-11-23 06:39:57,687 INFO L112 eAbstractionObserver]: Analyzing ICFG test02_false-unreach-call_true-termination.c [2018-11-23 06:39:57,693 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:39:57,697 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 06:39:57,707 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 06:39:57,734 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:39:57,734 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 06:39:57,734 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:39:57,734 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:39:57,734 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:39:57,735 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:39:57,735 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:39:57,735 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:39:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-23 06:39:57,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 06:39:57,753 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:39:57,753 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:39:57,754 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:39:57,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:39:57,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1160017433, now seen corresponding path program 1 times [2018-11-23 06:39:57,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:39:57,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:57,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:39:57,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:39:57,801 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:39:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:39:57,857 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=8, |#NULL.offset|=5, |old(#NULL.base)|=8, |old(#NULL.offset)|=5, |old(~q~0)|=6, ~q~0=6] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~q~0 := 0; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=8, |old(#NULL.offset)|=5, |old(~q~0)|=6, ~q~0=0] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=8, |old(#NULL.offset)|=5, |old(~q~0)|=6, ~q~0=0] [?] RET #15#return; VAL [|#NULL.base|=0, |#NULL.offset|=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4);havoc ~b~0;~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset;~p2~0.base, ~p2~0.offset := ~p1~0.base, ~p1~0.offset;~q~0 := 0; VAL [main_~p1~0.base=7, main_~p1~0.offset=0, main_~p2~0.base=7, main_~p2~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_~#a~0.base|=7, |main_~#a~0.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] assume ~p1~0.base == ~p2~0.base && ~p1~0.offset == ~p2~0.offset; VAL [main_~p1~0.base=7, main_~p1~0.offset=0, main_~p2~0.base=7, main_~p2~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_~#a~0.base|=7, |main_~#a~0.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] assume !false; VAL [main_~p1~0.base=7, main_~p1~0.offset=0, main_~p2~0.base=7, main_~p2~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_~#a~0.base|=7, |main_~#a~0.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=8, #NULL.offset=5, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L4] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~q~0=0] [L7] call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset; [L9] ~p2~0.base, ~p2~0.offset := ~p1~0.base, ~p1~0.offset; [L11] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L13-L15] assume ~p1~0.base == ~p2~0.base && ~p1~0.offset == ~p2~0.offset; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L19] assert false; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=8, #NULL.offset=5, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L4] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~q~0=0] [L7] call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset; [L9] ~p2~0.base, ~p2~0.offset := ~p1~0.base, ~p1~0.offset; [L11] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L13-L15] assume ~p1~0.base == ~p2~0.base && ~p1~0.offset == ~p2~0.offset; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L19] assert false; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L4] int q; VAL [\old(q)=6, q=0] [L7] int a, b; [L8] int *p1 = &a; [L9] int *p2 = p1; [L11] q = 0 VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] [L13] COND TRUE p1 == p2 VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] [L19] __VERIFIER_error() VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] ----- [2018-11-23 06:39:57,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:39:57 BoogieIcfgContainer [2018-11-23 06:39:57,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:39:57,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:39:57,888 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:39:57,888 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:39:57,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:39:57" (3/4) ... [2018-11-23 06:39:57,891 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=8, |#NULL.offset|=5, |old(#NULL.base)|=8, |old(#NULL.offset)|=5, |old(~q~0)|=6, ~q~0=6] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~q~0 := 0; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=8, |old(#NULL.offset)|=5, |old(~q~0)|=6, ~q~0=0] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=8, |old(#NULL.offset)|=5, |old(~q~0)|=6, ~q~0=0] [?] RET #15#return; VAL [|#NULL.base|=0, |#NULL.offset|=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4);havoc ~b~0;~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset;~p2~0.base, ~p2~0.offset := ~p1~0.base, ~p1~0.offset;~q~0 := 0; VAL [main_~p1~0.base=7, main_~p1~0.offset=0, main_~p2~0.base=7, main_~p2~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_~#a~0.base|=7, |main_~#a~0.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] assume ~p1~0.base == ~p2~0.base && ~p1~0.offset == ~p2~0.offset; VAL [main_~p1~0.base=7, main_~p1~0.offset=0, main_~p2~0.base=7, main_~p2~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_~#a~0.base|=7, |main_~#a~0.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] assume !false; VAL [main_~p1~0.base=7, main_~p1~0.offset=0, main_~p2~0.base=7, main_~p2~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |main_~#a~0.base|=7, |main_~#a~0.offset|=0, |old(~q~0)|=0, ~q~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=8, #NULL.offset=5, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L4] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~q~0=0] [L7] call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset; [L9] ~p2~0.base, ~p2~0.offset := ~p1~0.base, ~p1~0.offset; [L11] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L13-L15] assume ~p1~0.base == ~p2~0.base && ~p1~0.offset == ~p2~0.offset; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L19] assert false; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=8, #NULL.offset=5, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [L4] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=8, old(#NULL.offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~q~0=0] [L7] call ~#a~0.base, ~#a~0.offset := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset; [L9] ~p2~0.base, ~p2~0.offset := ~p1~0.base, ~p1~0.offset; [L11] ~q~0 := 0; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L13-L15] assume ~p1~0.base == ~p2~0.base && ~p1~0.offset == ~p2~0.offset; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [L19] assert false; VAL [#NULL.base=0, #NULL.offset=0, old(~q~0)=0, ~#a~0.base=7, ~#a~0.offset=0, ~p1~0.base=7, ~p1~0.offset=0, ~p2~0.base=7, ~p2~0.offset=0, ~q~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=8, #NULL!offset=5, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L4] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=8, old(#NULL!offset)=5, old(~q~0)=6, ~q~0=0] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0, ~q~0=0] [?] CALL call #t~ret0 := main(); VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~q~0=0] [L7] FCALL call ~#a~0 := #Ultimate.alloc(4); [L7] havoc ~b~0; [L8] ~p1~0 := ~#a~0; [L9] ~p2~0 := ~p1~0; [L11] ~q~0 := 0; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L13] COND TRUE ~p1~0 == ~p2~0 VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L19] assert false; VAL [#NULL!base=0, #NULL!offset=0, old(~q~0)=0, ~#a~0!base=7, ~#a~0!offset=0, ~p1~0!base=7, ~p1~0!offset=0, ~p2~0!base=7, ~p2~0!offset=0, ~q~0=0] [L4] int q; VAL [\old(q)=6, q=0] [L7] int a, b; [L8] int *p1 = &a; [L9] int *p2 = p1; [L11] q = 0 VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] [L13] COND TRUE p1 == p2 VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] [L19] __VERIFIER_error() VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] ----- [2018-11-23 06:39:57,931 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7fbbbdb7-0964-4e9f-bbaf-ba2790977679/bin-2019/utaipan/witness.graphml [2018-11-23 06:39:57,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:39:57,932 INFO L168 Benchmark]: Toolchain (without parser) took 592.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:39:57,933 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:39:57,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.67 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:57,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.83 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:39:57,935 INFO L168 Benchmark]: Boogie Preprocessor took 12.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:57,935 INFO L168 Benchmark]: RCFGBuilder took 154.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:57,936 INFO L168 Benchmark]: TraceAbstraction took 204.26 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:57,937 INFO L168 Benchmark]: Witness Printer took 43.81 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:39:57,942 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.67 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 13.83 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 154.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 204.26 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 43.81 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int q; VAL [\old(q)=6, q=0] [L7] int a, b; [L8] int *p1 = &a; [L9] int *p2 = p1; [L11] q = 0 VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] [L13] COND TRUE p1 == p2 VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] [L19] __VERIFIER_error() VAL [\old(q)=0, a={7:0}, p1={7:0}, p2={7:0}, q=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...