./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer --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 Automizer --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 0.1.23-0cd3be1 [2018-11-28 13:10:32,034 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:10:32,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:10:32,043 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:10:32,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:10:32,044 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:10:32,045 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:10:32,046 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:10:32,047 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:10:32,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:10:32,049 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:10:32,049 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:10:32,050 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:10:32,050 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:10:32,051 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:10:32,052 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:10:32,053 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:10:32,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:10:32,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:10:32,057 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:10:32,057 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:10:32,058 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:10:32,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:10:32,060 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:10:32,060 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:10:32,060 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:10:32,061 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:10:32,062 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:10:32,062 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:10:32,063 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:10:32,063 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:10:32,063 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:10:32,064 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:10:32,064 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:10:32,064 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:10:32,065 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:10:32,065 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 13:10:32,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:10:32,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:10:32,075 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:10:32,075 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:10:32,075 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:10:32,075 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:10:32,075 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:10:32,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:10:32,076 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:10:32,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:10:32,076 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:10:32,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:10:32,076 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:10:32,076 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:10:32,076 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:10:32,077 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:10:32,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:10:32,077 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:10:32,077 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:10:32,077 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:10:32,077 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:10:32,077 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:10:32,077 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:10:32,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:10:32,078 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:10:32,078 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:10:32,078 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:10:32,078 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:10:32,078 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:10:32,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:10:32,078 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer 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 -> Automizer 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 [2018-11-28 13:10:32,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:10:32,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:10:32,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:10:32,114 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:10:32,114 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:10:32,115 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c [2018-11-28 13:10:32,152 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/data/7101f3e5c/62bef0d97a5a4278bde64526e9efe584/FLAG081661b58 [2018-11-28 13:10:32,552 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:10:32,552 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/sv-benchmarks/c/ldv-regression/test22_false-unreach-call.c [2018-11-28 13:10:32,556 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/data/7101f3e5c/62bef0d97a5a4278bde64526e9efe584/FLAG081661b58 [2018-11-28 13:10:32,565 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/data/7101f3e5c/62bef0d97a5a4278bde64526e9efe584 [2018-11-28 13:10:32,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:10:32,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:10:32,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:10:32,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:10:32,573 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:10:32,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d0d070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32, skipping insertion in model container [2018-11-28 13:10:32,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:10:32,596 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:10:32,698 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:10:32,705 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:10:32,718 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:10:32,730 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:10:32,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32 WrapperNode [2018-11-28 13:10:32,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:10:32,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:10:32,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:10:32,731 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:10:32,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:10:32,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:10:32,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:10:32,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:10:32,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... [2018-11-28 13:10:32,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:10:32,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:10:32,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:10:32,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:10:32,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/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 [2018-11-28 13:10:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure init [2018-11-28 13:10:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2018-11-28 13:10:32,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:10:32,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure check [2018-11-28 13:10:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:10:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2018-11-28 13:10:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:10:32,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:10:32,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:10:33,031 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:10:33,031 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 13:10:33,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:33 BoogieIcfgContainer [2018-11-28 13:10:33,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:10:33,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:10:33,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:10:33,035 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:10:33,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:10:32" (1/3) ... [2018-11-28 13:10:33,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645f8532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:10:33, skipping insertion in model container [2018-11-28 13:10:33,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:10:32" (2/3) ... [2018-11-28 13:10:33,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645f8532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:10:33, skipping insertion in model container [2018-11-28 13:10:33,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:33" (3/3) ... [2018-11-28 13:10:33,038 INFO L112 eAbstractionObserver]: Analyzing ICFG test22_false-unreach-call.c [2018-11-28 13:10:33,047 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:10:33,053 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 13:10:33,064 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 13:10:33,084 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:10:33,085 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:10:33,085 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:10:33,085 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:10:33,085 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:10:33,085 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:10:33,085 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:10:33,085 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:10:33,085 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:10:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-28 13:10:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-28 13:10:33,104 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:33,105 INFO L402 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] [2018-11-28 13:10:33,106 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:33,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:33,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1838243936, now seen corresponding path program 1 times [2018-11-28 13:10:33,111 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:33,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:33,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:33,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:33,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 13:10:33,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:10:33,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:10:33,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 13:10:33,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 13:10:33,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:10:33,257 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-28 13:10:33,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:33,270 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2018-11-28 13:10:33,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:10:33,272 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 37 [2018-11-28 13:10:33,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:33,278 INFO L225 Difference]: With dead ends: 49 [2018-11-28 13:10:33,278 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 13:10:33,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:10:33,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 13:10:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-28 13:10:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 13:10:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2018-11-28 13:10:33,306 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2018-11-28 13:10:33,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:33,308 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-11-28 13:10:33,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 13:10:33,308 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-11-28 13:10:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 13:10:33,310 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:33,310 INFO L402 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] [2018-11-28 13:10:33,310 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:33,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:33,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1291679579, now seen corresponding path program 1 times [2018-11-28 13:10:33,310 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:33,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:33,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:33,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:33,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 13:10:33,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:10:33,514 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:10:33,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:10:33,574 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:10:33,808 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-28 13:10:33,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-28 13:10:33,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:10:33,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:33,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:10:33,817 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:5 [2018-11-28 13:10:33,836 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 13:10:33,851 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:10:33,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2018-11-28 13:10:33,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-28 13:10:33,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-28 13:10:33,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2018-11-28 13:10:33,854 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 20 states. [2018-11-28 13:10:34,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:10:34,217 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2018-11-28 13:10:34,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 13:10:34,217 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 38 [2018-11-28 13:10:34,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:10:34,219 INFO L225 Difference]: With dead ends: 69 [2018-11-28 13:10:34,220 INFO L226 Difference]: Without dead ends: 61 [2018-11-28 13:10:34,220 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2018-11-28 13:10:34,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-28 13:10:34,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 43. [2018-11-28 13:10:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 13:10:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-28 13:10:34,232 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 38 [2018-11-28 13:10:34,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:10:34,232 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-28 13:10:34,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-28 13:10:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-11-28 13:10:34,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 13:10:34,234 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:10:34,234 INFO L402 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] [2018-11-28 13:10:34,234 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:10:34,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:10:34,234 INFO L82 PathProgramCache]: Analyzing trace with hash 270611225, now seen corresponding path program 1 times [2018-11-28 13:10:34,235 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:10:34,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:10:34,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:34,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:10:34,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:10:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:10:34,304 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:10:34,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:10:34 BoogieIcfgContainer [2018-11-28 13:10:34,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:10:34,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:10:34,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:10:34,336 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:10:34,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:10:33" (3/4) ... [2018-11-28 13:10:34,339 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 13:10:34,376 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5b48f697-179b-425d-b93a-725932bb7487/bin-2019/uautomizer/witness.graphml [2018-11-28 13:10:34,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:10:34,377 INFO L168 Benchmark]: Toolchain (without parser) took 1808.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 959.8 MB in the beginning and 921.0 MB in the end (delta: 38.7 MB). Peak memory consumption was 171.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:34,377 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:10:34,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.68 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:34,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.31 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:10:34,378 INFO L168 Benchmark]: Boogie Preprocessor took 56.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:34,378 INFO L168 Benchmark]: RCFGBuilder took 228.50 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:34,379 INFO L168 Benchmark]: TraceAbstraction took 1303.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 924.4 MB in the end (delta: 185.6 MB). Peak memory consumption was 185.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:34,379 INFO L168 Benchmark]: Witness Printer took 40.18 ms. Allocated memory is still 1.2 GB. Free memory was 924.4 MB in the beginning and 921.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:10:34,381 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.68 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.0 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 16.31 ms. Allocated memory is still 1.0 GB. Free memory is still 949.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 228.50 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1303.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 924.4 MB in the end (delta: 185.6 MB). Peak memory consumption was 185.6 MB. Max. memory is 11.5 GB. * Witness Printer took 40.18 ms. Allocated memory is still 1.2 GB. Free memory was 924.4 MB in the beginning and 921.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * 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] struct dummy d1, d2; VAL [\old(d1)=25, \old(d1)=19, \old(d2)=24, \old(d2)=21, d1={20:0}, d2={22:0}] [L32] CALL init() VAL [d1={20:0}, d2={22:0}] [L13] d1.a = __VERIFIER_nondet_int() [L14] d1.b = __VERIFIER_nondet_int() [L16] d2.a = __VERIFIER_nondet_int() [L17] d2.b = __VERIFIER_nondet_int() [L32] RET init() VAL [d1={20:0}, d2={22:0}] [L33] CALL, EXPR get_dummy() VAL [d1={20:0}, d2={22:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={20:0}, d1={20:0}, d2={22:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={20:0}, d2={22:0}, get_dummy()={20:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={20:0}, d2={22:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={20:0}, d1={20:0}, d2={22:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={20:0}, d2={22:0}, get_dummy()={20:0}, pd1={20:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={20:0}, d2={22:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=0, __VERIFIER_nondet_bool() ? &d1 : &d2={22:0}, d1={20:0}, d2={22:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={20:0}, d2={22:0}, get_dummy()={22:0}, pd1={20:0}, pd2={20:0}] [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] EXPR (*pd2).a [L35] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [(*pd2).a=6, d1={20:0}, d2={22:0}, i=0, pd1={20:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={20:0}, pd3={22:0}] [L35] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L36] int *pa = &pd1->a; [L37] EXPR pd3->a [L37] i = pd3->a - 10 [L38] EXPR \read(*pa) VAL [\read(*pa)=6, d1={20:0}, d2={22:0}, i=7, pa={20:0}, pd1={20:0}, pd2={20:0}, pd3={22:0}] [L38] COND FALSE !(i < *pa) [L41] CALL, EXPR check(pd2, i) VAL [\old(i)=7, d1={20:0}, d2={22:0}, s1={20:0}] [L27] EXPR s1->a [L27] return s1->a == i; [L41] RET, EXPR check(pd2, i) VAL [check(pd2, i)=0, d1={20:0}, d2={22:0}, i=7, pa={20:0}, pd1={20:0}, pd2={20:0}, pd3={22:0}] [L41] COND TRUE !check(pd2, i) [L48] __VERIFIER_error() VAL [d1={20:0}, d2={22:0}, i=7, pa={20:0}, pd1={20:0}, pd2={20:0}, pd3={22:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. UNSAFE Result, 1.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 71 SDtfs, 68 SDslu, 334 SDs, 0 SdLazy, 337 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 13876 SizeOfPredicates, 12 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 30/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...