./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test18_true-unreach-call_true-termination.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_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test18_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/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 3bdf2cb07df28eeba3e91ce6104175f18bd37d0c ................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:38:44,557 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:38:44,559 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:38:44,569 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:38:44,570 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:38:44,570 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:38:44,572 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:38:44,573 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:38:44,575 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:38:44,576 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:38:44,577 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:38:44,577 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:38:44,579 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:38:44,580 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:38:44,581 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:38:44,582 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:38:44,583 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:38:44,585 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:38:44,587 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:38:44,589 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:38:44,590 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:38:44,591 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:38:44,594 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:38:44,594 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:38:44,595 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:38:44,596 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:38:44,597 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:38:44,597 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:38:44,599 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:38:44,600 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:38:44,600 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:38:44,601 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:38:44,601 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:38:44,602 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:38:44,603 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:38:44,604 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:38:44,604 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 20:38:44,618 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:38:44,619 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:38:44,619 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:38:44,619 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 20:38:44,620 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 20:38:44,620 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 20:38:44,620 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 20:38:44,620 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 20:38:44,620 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 20:38:44,620 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 20:38:44,620 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 20:38:44,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:38:44,621 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:38:44,621 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:38:44,621 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:38:44,626 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:38:44,626 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:38:44,626 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:38:44,626 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:38:44,627 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:38:44,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:38:44,628 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:38:44,628 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:38:44,628 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:38:44,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:38:44,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:38:44,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:38:44,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:38:44,629 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:38:44,629 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:38:44,630 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 20:38:44,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:38:44,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:38:44,630 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 20:38:44,630 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_781c7409-cd40-47a5-b98f-d1fda7d3072c/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 -> 3bdf2cb07df28eeba3e91ce6104175f18bd37d0c [2018-10-26 20:38:44,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:38:44,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:38:44,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:38:44,692 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:38:44,692 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:38:44,693 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test18_true-unreach-call_true-termination.c [2018-10-26 20:38:44,745 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/data/1ecfdf0a7/fb3241b625384b0294882ed240477a68/FLAG47b7fb640 [2018-10-26 20:38:45,140 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:38:45,141 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/sv-benchmarks/c/ldv-regression/test18_true-unreach-call_true-termination.c [2018-10-26 20:38:45,148 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/data/1ecfdf0a7/fb3241b625384b0294882ed240477a68/FLAG47b7fb640 [2018-10-26 20:38:45,162 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/data/1ecfdf0a7/fb3241b625384b0294882ed240477a68 [2018-10-26 20:38:45,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:38:45,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:38:45,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:38:45,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:38:45,173 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:38:45,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b25249f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45, skipping insertion in model container [2018-10-26 20:38:45,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:38:45,203 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:38:45,335 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:38:45,344 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:38:45,359 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:38:45,373 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:38:45,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45 WrapperNode [2018-10-26 20:38:45,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:38:45,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:38:45,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:38:45,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:38:45,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:38:45,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:38:45,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:38:45,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:38:45,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... [2018-10-26 20:38:45,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:38:45,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:38:45,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:38:45,449 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:38:45,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/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 20:38:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 20:38:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 20:38:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-10-26 20:38:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-10-26 20:38:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:38:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:38:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:38:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:38:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:38:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:38:46,078 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:38:46,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:38:46 BoogieIcfgContainer [2018-10-26 20:38:46,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:38:46,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:38:46,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:38:46,083 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:38:46,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:38:45" (1/3) ... [2018-10-26 20:38:46,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d6660b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:38:46, skipping insertion in model container [2018-10-26 20:38:46,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:38:45" (2/3) ... [2018-10-26 20:38:46,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55d6660b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:38:46, skipping insertion in model container [2018-10-26 20:38:46,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:38:46" (3/3) ... [2018-10-26 20:38:46,088 INFO L112 eAbstractionObserver]: Analyzing ICFG test18_true-unreach-call_true-termination.c [2018-10-26 20:38:46,098 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:38:46,107 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:38:46,125 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:38:46,158 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:38:46,158 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:38:46,158 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:38:46,158 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:38:46,159 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:38:46,159 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:38:46,159 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:38:46,159 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:38:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-26 20:38:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 20:38:46,183 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:38:46,184 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:38:46,186 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:38:46,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:38:46,192 INFO L82 PathProgramCache]: Analyzing trace with hash 731851180, now seen corresponding path program 1 times [2018-10-26 20:38:46,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 20:38:46,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:38:46,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:38:46,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:38:46,241 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 20:38:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:38:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:38:46,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:38:46,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-26 20:38:46,685 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 20:38:46,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 20:38:46,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 20:38:46,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 20:38:46,709 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2018-10-26 20:38:47,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:38:47,228 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-10-26 20:38:47,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 20:38:47,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-26 20:38:47,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:38:47,237 INFO L225 Difference]: With dead ends: 27 [2018-10-26 20:38:47,237 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:38:47,241 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-26 20:38:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:38:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:38:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:38:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:38:47,270 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-10-26 20:38:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:38:47,271 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:38:47,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 20:38:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:38:47,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:38:47,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:38:47,352 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:38:47,353 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:38:47,353 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:38:47,353 INFO L421 ceAbstractionStarter]: At program point L9(line 9) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|) (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|)) [2018-10-26 20:38:47,353 INFO L425 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-10-26 20:38:47,353 INFO L425 ceAbstractionStarter]: For program point fEXIT(lines 8 11) no Hoare annotation was computed. [2018-10-26 20:38:47,353 INFO L421 ceAbstractionStarter]: At program point fENTRY(lines 8 11) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2018-10-26 20:38:47,353 INFO L425 ceAbstractionStarter]: For program point fFINAL(lines 8 11) no Hoare annotation was computed. [2018-10-26 20:38:47,354 INFO L425 ceAbstractionStarter]: For program point gEXIT(lines 4 6) no Hoare annotation was computed. [2018-10-26 20:38:47,354 INFO L425 ceAbstractionStarter]: For program point gFINAL(lines 4 6) no Hoare annotation was computed. [2018-10-26 20:38:47,354 INFO L421 ceAbstractionStarter]: At program point gENTRY(lines 4 6) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2018-10-26 20:38:47,354 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:38:47,354 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 20:38:47,354 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:38:47,354 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:38:47,354 INFO L421 ceAbstractionStarter]: At program point L17(lines 13 24) the Hoare annotation is: false [2018-10-26 20:38:47,354 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-10-26 20:38:47,355 INFO L421 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2018-10-26 20:38:47,355 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-10-26 20:38:47,355 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 13 24) the Hoare annotation is: (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2018-10-26 20:38:47,355 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2018-10-26 20:38:47,355 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2018-10-26 20:38:47,355 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2018-10-26 20:38:47,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:38:47 BoogieIcfgContainer [2018-10-26 20:38:47,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:38:47,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:38:47,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:38:47,366 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:38:47,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:38:46" (3/4) ... [2018-10-26 20:38:47,372 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 20:38:47,379 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 20:38:47,380 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-10-26 20:38:47,380 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2018-10-26 20:38:47,380 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 20:38:47,387 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2018-10-26 20:38:47,387 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-10-26 20:38:47,387 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-10-26 20:38:47,388 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 20:38:47,388 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 20:38:47,388 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 20:38:47,444 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_781c7409-cd40-47a5-b98f-d1fda7d3072c/bin-2019/utaipan/witness.graphml [2018-10-26 20:38:47,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:38:47,445 INFO L168 Benchmark]: Toolchain (without parser) took 2279.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -110.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:38:47,447 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:38:47,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.02 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:38:47,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 20:38:47,449 INFO L168 Benchmark]: Boogie Preprocessor took 28.41 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:38:47,449 INFO L168 Benchmark]: RCFGBuilder took 630.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-10-26 20:38:47,451 INFO L168 Benchmark]: TraceAbstraction took 1285.91 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:38:47,452 INFO L168 Benchmark]: Witness Printer took 78.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:38:47,455 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.02 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 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 44.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.41 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 630.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1285.91 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Witness Printer took 78.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 4 SDslu, 56 SDs, 0 SdLazy, 75 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 47 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 1955 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...