./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/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 302f70b774fc5b69662b9ef8666b86017ea3a54d .................................................................................................................................................................................................................................. 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 23:43:21,924 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:43:21,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:43:21,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:43:21,946 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:43:21,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:43:21,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:43:21,950 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:43:21,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:43:21,953 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:43:21,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:43:21,954 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:43:21,955 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:43:21,956 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:43:21,957 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:43:21,957 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:43:21,958 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:43:21,959 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:43:21,962 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:43:21,963 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:43:21,964 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:43:21,966 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:43:21,968 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:43:21,968 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:43:21,968 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:43:21,969 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:43:21,970 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:43:21,971 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:43:21,972 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:43:21,981 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:43:21,981 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:43:21,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:43:21,982 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:43:21,982 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:43:21,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:43:21,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:43:21,984 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 23:43:22,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:43:22,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:43:22,008 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:43:22,009 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:43:22,009 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:43:22,010 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:43:22,010 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 23:43:22,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:43:22,010 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:43:22,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:43:22,011 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:43:22,011 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:43:22,011 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:43:22,011 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:43:22,011 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:43:22,011 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:43:22,011 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:43:22,012 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:43:22,012 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:43:22,012 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:43:22,012 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:43:22,012 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:43:22,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:43:22,013 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:43:22,013 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:43:22,013 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:43:22,013 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 23:43:22,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:43:22,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:43:22,014 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_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/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 -> 302f70b774fc5b69662b9ef8666b86017ea3a54d [2018-10-26 23:43:22,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:43:22,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:43:22,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:43:22,071 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:43:22,072 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:43:22,073 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i [2018-10-26 23:43:22,122 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/data/6e28df4cd/ac2c0b65c27240119c0a6488190fed2c/FLAG0251901c7 [2018-10-26 23:43:22,499 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:43:22,500 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/sv-benchmarks/c/ldv-regression/callfpointer_true-termination.c_false-unreach-call.i [2018-10-26 23:43:22,505 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/data/6e28df4cd/ac2c0b65c27240119c0a6488190fed2c/FLAG0251901c7 [2018-10-26 23:43:22,517 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/data/6e28df4cd/ac2c0b65c27240119c0a6488190fed2c [2018-10-26 23:43:22,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:43:22,522 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:43:22,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:43:22,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:43:22,527 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:43:22,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ae2364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22, skipping insertion in model container [2018-10-26 23:43:22,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:43:22,552 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:43:22,697 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:43:22,702 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:43:22,715 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:43:22,730 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:43:22,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22 WrapperNode [2018-10-26 23:43:22,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:43:22,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:43:22,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:43:22,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:43:22,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... [2018-10-26 23:43:22,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:43:22,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:43:22,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:43:22,761 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:43:22,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/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 [2018-10-26 23:43:22,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:43:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:43:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2018-10-26 23:43:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 23:43:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure h [2018-10-26 23:43:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:43:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 23:43:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 23:43:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2018-10-26 23:43:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure h [2018-10-26 23:43:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:43:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:43:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:43:23,208 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:43:23,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:43:23 BoogieIcfgContainer [2018-10-26 23:43:23,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:43:23,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:43:23,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:43:23,214 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:43:23,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:43:22" (1/3) ... [2018-10-26 23:43:23,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d5b56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:43:23, skipping insertion in model container [2018-10-26 23:43:23,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:43:22" (2/3) ... [2018-10-26 23:43:23,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d5b56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:43:23, skipping insertion in model container [2018-10-26 23:43:23,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:43:23" (3/3) ... [2018-10-26 23:43:23,218 INFO L112 eAbstractionObserver]: Analyzing ICFG callfpointer_true-termination.c_false-unreach-call.i [2018-10-26 23:43:23,229 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:43:23,236 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:43:23,253 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:43:23,291 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:43:23,292 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:43:23,292 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:43:23,293 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:43:23,293 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:43:23,293 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:43:23,293 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:43:23,293 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:43:23,293 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:43:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-26 23:43:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 23:43:23,333 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:43:23,334 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:43:23,337 INFO L424 AbstractCegarLoop]: === Iteration 1 === [hErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:43:23,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:43:23,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1027422766, now seen corresponding path program 1 times [2018-10-26 23:43:23,345 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 23:43:23,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 23:43:23,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:23,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:43:23,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:43:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:43:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:43:23,497 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:43:23,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:43:23 BoogieIcfgContainer [2018-10-26 23:43:23,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:43:23,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:43:23,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:43:23,516 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:43:23,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:43:23" (3/4) ... [2018-10-26 23:43:23,520 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:43:23,575 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c482cbcf-0cc7-4e0d-9ac2-5f17ccea35d0/bin-2019/uautomizer/witness.graphml [2018-10-26 23:43:23,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:43:23,576 INFO L168 Benchmark]: Toolchain (without parser) took 1055.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:43:23,578 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:43:23,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:23,579 INFO L168 Benchmark]: Boogie Preprocessor took 29.20 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:43:23,580 INFO L168 Benchmark]: RCFGBuilder took 448.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 949.1 MB in the beginning and 1.2 GB in the end (delta: -217.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:23,581 INFO L168 Benchmark]: TraceAbstraction took 306.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:23,581 INFO L168 Benchmark]: Witness Printer took 59.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:43:23,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 207.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.20 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 448.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 949.1 MB in the beginning and 1.2 GB in the end (delta: -217.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 306.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Witness Printer took 59.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] CALL f(h) VAL [g={-1:0}] [L9] CALL g(1) [L13] COND TRUE i==1 VAL [\old(i)=1, i=1] [L14] __VERIFIER_error() VAL [\old(i)=1, i=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 24 locations, 1 error locations. UNSAFE Result, 0.2s 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=24occurred 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, 12 NumberOfCodeBlocks, 12 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...