./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c --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_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/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 54c9c3f123e280a35d761deadfd537de0a28f053 .................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-10-26 19:47:10,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:47:10,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:47:10,615 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:47:10,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:47:10,617 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:47:10,618 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:47:10,620 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:47:10,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:47:10,622 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:47:10,623 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:47:10,623 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:47:10,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:47:10,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:47:10,626 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:47:10,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:47:10,628 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:47:10,630 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:47:10,631 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:47:10,633 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:47:10,634 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:47:10,635 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:47:10,637 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:47:10,637 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:47:10,638 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:47:10,638 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:47:10,644 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:47:10,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:47:10,648 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:47:10,650 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:47:10,651 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:47:10,652 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:47:10,652 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:47:10,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:47:10,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:47:10,654 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:47:10,654 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 19:47:10,676 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:47:10,676 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:47:10,677 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:47:10,677 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:47:10,677 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:47:10,677 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:47:10,678 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 19:47:10,678 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:47:10,678 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 19:47:10,678 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 19:47:10,678 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:47:10,679 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:47:10,679 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:47:10,679 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:47:10,679 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:47:10,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:47:10,680 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:47:10,680 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:47:10,680 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:47:10,680 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:47:10,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:47:10,681 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:47:10,681 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:47:10,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:47:10,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:47:10,682 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:47:10,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:47:10,682 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:47:10,682 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:47:10,682 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:47:10,682 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 19:47:10,683 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:47:10,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:47:10,683 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:47:10,683 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_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/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 -> 54c9c3f123e280a35d761deadfd537de0a28f053 [2018-10-26 19:47:10,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:47:10,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:47:10,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:47:10,752 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:47:10,753 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:47:10,753 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c [2018-10-26 19:47:10,806 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/data/72e48908e/988d3dee91a741b69db7e36ae97138cf/FLAG0f1af1bbc [2018-10-26 19:47:11,151 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:47:11,152 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c [2018-10-26 19:47:11,159 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/data/72e48908e/988d3dee91a741b69db7e36ae97138cf/FLAG0f1af1bbc [2018-10-26 19:47:11,172 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/data/72e48908e/988d3dee91a741b69db7e36ae97138cf [2018-10-26 19:47:11,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:47:11,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:47:11,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:47:11,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:47:11,181 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:47:11,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f2c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11, skipping insertion in model container [2018-10-26 19:47:11,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:47:11,213 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:47:11,367 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:47:11,375 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:47:11,392 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:47:11,408 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:47:11,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11 WrapperNode [2018-10-26 19:47:11,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:47:11,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:47:11,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:47:11,410 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:47:11,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:47:11,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:47:11,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:47:11,456 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:47:11,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... [2018-10-26 19:47:11,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:47:11,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:47:11,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:47:11,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:47:11,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/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 [2018-10-26 19:47:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure init [2018-10-26 19:47:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2018-10-26 19:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:47:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:47:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure check [2018-10-26 19:47:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2018-10-26 19:47:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:47:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:47:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:47:11,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:47:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2018-10-26 19:47:11,626 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2018-10-26 19:47:12,131 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:47:12,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:47:12 BoogieIcfgContainer [2018-10-26 19:47:12,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:47:12,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:47:12,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:47:12,137 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:47:12,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:47:11" (1/3) ... [2018-10-26 19:47:12,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fec3af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:47:12, skipping insertion in model container [2018-10-26 19:47:12,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:47:11" (2/3) ... [2018-10-26 19:47:12,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fec3af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:47:12, skipping insertion in model container [2018-10-26 19:47:12,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:47:12" (3/3) ... [2018-10-26 19:47:12,141 INFO L112 eAbstractionObserver]: Analyzing ICFG test22_false-unreach-call.c [2018-10-26 19:47:12,151 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:47:12,160 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:47:12,177 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:47:12,211 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:47:12,211 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:47:12,211 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:47:12,211 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:47:12,212 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:47:12,212 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:47:12,213 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:47:12,213 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:47:12,243 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-10-26 19:47:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-26 19:47:12,252 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:47:12,254 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:47:12,257 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:47:12,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:47:12,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1344427580, now seen corresponding path program 1 times [2018-10-26 19:47:12,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:47:12,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:47:12,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:47:12,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:47:12,324 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:47:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:47:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 19:47:12,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:47:12,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:47:12,547 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 19:47:12,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:47:12,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:47:12,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:47:12,574 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-10-26 19:47:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:47:12,600 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2018-10-26 19:47:12,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:47:12,602 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2018-10-26 19:47:12,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:47:12,614 INFO L225 Difference]: With dead ends: 50 [2018-10-26 19:47:12,615 INFO L226 Difference]: Without dead ends: 32 [2018-10-26 19:47:12,618 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 [2018-10-26 19:47:12,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-26 19:47:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-10-26 19:47:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-26 19:47:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-10-26 19:47:12,674 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 37 [2018-10-26 19:47:12,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:47:12,676 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-10-26 19:47:12,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:47:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-10-26 19:47:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 19:47:12,678 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:47:12,679 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:47:12,679 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:47:12,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:47:12,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1544381942, now seen corresponding path program 1 times [2018-10-26 19:47:12,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:47:12,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:47:12,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:47:12,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:47:12,684 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:47:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:47:13,201 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-26 19:47:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-26 19:47:13,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:47:13,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-26 19:47:13,505 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 19:47:13,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-26 19:47:13,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-26 19:47:13,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-10-26 19:47:13,507 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 13 states. [2018-10-26 19:47:14,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:47:14,403 INFO L93 Difference]: Finished difference Result 85 states and 103 transitions. [2018-10-26 19:47:14,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 19:47:14,406 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2018-10-26 19:47:14,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:47:14,409 INFO L225 Difference]: With dead ends: 85 [2018-10-26 19:47:14,410 INFO L226 Difference]: Without dead ends: 77 [2018-10-26 19:47:14,411 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-10-26 19:47:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-10-26 19:47:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 45. [2018-10-26 19:47:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-26 19:47:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2018-10-26 19:47:14,424 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 39 [2018-10-26 19:47:14,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:47:14,425 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2018-10-26 19:47:14,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-26 19:47:14,425 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2018-10-26 19:47:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 19:47:14,429 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:47:14,429 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:47:14,429 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:47:14,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:47:14,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1162237452, now seen corresponding path program 1 times [2018-10-26 19:47:14,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:47:14,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:47:14,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:47:14,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:47:14,431 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:47:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:47:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:47:14,560 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:47:14,574 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,576 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,576 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,577 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:47:14 BoogieIcfgContainer [2018-10-26 19:47:14,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:47:14,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:47:14,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:47:14,606 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:47:14,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:47:12" (3/4) ... [2018-10-26 19:47:14,610 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 19:47:14,612 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,613 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,613 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,614 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:47:14,682 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_14c12c5f-88fe-4ba5-8a6b-e89d33d4ef74/bin-2019/utaipan/witness.graphml [2018-10-26 19:47:14,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:47:14,685 INFO L168 Benchmark]: Toolchain (without parser) took 3510.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 955.8 MB in the beginning and 1.0 GB in the end (delta: -62.6 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:47:14,686 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:47:14,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.93 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:47:14,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.66 ms. Allocated memory is still 1.0 GB. Free memory was 945.1 MB in the beginning and 941.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2018-10-26 19:47:14,688 INFO L168 Benchmark]: Boogie Preprocessor took 35.31 ms. Allocated memory is still 1.0 GB. Free memory was 941.0 MB in the beginning and 938.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:47:14,688 INFO L168 Benchmark]: RCFGBuilder took 641.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:47:14,689 INFO L168 Benchmark]: TraceAbstraction took 2472.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:47:14,690 INFO L168 Benchmark]: Witness Printer took 78.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:47:14,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.93 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.1 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 45.66 ms. Allocated memory is still 1.0 GB. Free memory was 945.1 MB in the beginning and 941.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.31 ms. Allocated memory is still 1.0 GB. Free memory was 941.0 MB in the beginning and 938.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 641.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2472.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. * Witness Printer took 78.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 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.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 48]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] CALL struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L9] RET struct dummy d1, d2; [L32] CALL init() VAL [d1={24:0}, d2={22:0}] [L13] CALL d1.a = __VERIFIER_nondet_int() [L13] RET d1.a = __VERIFIER_nondet_int() [L14] CALL d1.b = __VERIFIER_nondet_int() [L14] RET d1.b = __VERIFIER_nondet_int() [L16] CALL d2.a = __VERIFIER_nondet_int() [L16] RET d2.a = __VERIFIER_nondet_int() [L17] CALL d2.b = __VERIFIER_nondet_int() [L17] RET d2.b = __VERIFIER_nondet_int() [L32] init() VAL [d1={24:0}, d2={22:0}] [L33] CALL, EXPR get_dummy() VAL [d1={24:0}, d2={22:0}] [L22] COND TRUE, EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={24:0}, d1={24:0}, d2={22:0}] [L22] RET return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] EXPR get_dummy() VAL [d1={24:0}, d2={22:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={24:0}, d2={22:0}] [L22] COND TRUE, EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={24:0}, d1={24:0}, d2={22:0}] [L22] RET return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] EXPR get_dummy() VAL [d1={24:0}, d2={22:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={24:0}, d2={22:0}] [L22] COND FALSE, EXPR !(__VERIFIER_nondet_bool() ? &d1 : &d2) VAL [__VERIFIER_nondet_bool()=0, __VERIFIER_nondet_bool() ? &d1 : &d2={22:0}, d1={24:0}, d2={22:0}] [L22] RET return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] EXPR get_dummy() VAL [d1={24:0}, d2={22:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L34] int i = __VERIFIER_nondet_int(); [L35] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L35] CALL, EXPR (*pd2).a [L35] RET, EXPR (*pd2).a [L35] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={24:0}, d2={22:0}] [L35] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L36] int *pa = &pd1->a; [L37] CALL, EXPR pd3->a [L37] RET, EXPR pd3->a [L37] i = pd3->a - 10 [L38] CALL, EXPR \read(*pa) [L38] RET, EXPR \read(*pa) [L38] COND FALSE !(i < *pa) [L41] CALL, EXPR check(pd2, i) VAL [d1={24:0}, d2={22:0}] [L27] CALL, EXPR s1->a [L27] RET, EXPR s1->a [L27] RET return s1->a == i; [L41] EXPR check(pd2, i) VAL [d1={24:0}, d2={22:0}] [L41] COND TRUE !check(pd2, i) [L48] __VERIFIER_error() VAL [d1={24:0}, d2={22:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. UNSAFE Result, 2.4s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 SDtfs, 45 SDslu, 344 SDs, 0 SdLazy, 224 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=2, 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, 2 MinimizatonAttempts, 32 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 8212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...