./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test_cut_trace_true-termination.c_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_cut_trace_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/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 56095c86866c7ca9fc704f1b38229d948862465a ................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:18:48,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:18:48,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:18:48,414 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:18:48,414 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:18:48,415 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:18:48,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:18:48,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:18:48,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:18:48,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:18:48,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:18:48,420 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:18:48,421 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:18:48,422 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:18:48,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:18:48,423 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:18:48,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:18:48,424 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:18:48,426 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:18:48,427 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:18:48,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:18:48,429 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:18:48,430 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:18:48,430 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:18:48,430 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:18:48,431 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:18:48,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:18:48,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:18:48,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:18:48,433 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:18:48,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:18:48,434 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:18:48,434 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:18:48,434 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:18:48,435 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:18:48,435 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:18:48,436 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 12:18:48,443 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:18:48,444 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:18:48,444 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:18:48,444 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 12:18:48,445 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:18:48,445 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:18:48,445 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:18:48,445 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:18:48,446 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:18:48,446 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:18:48,446 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:18:48,446 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:18:48,446 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:18:48,446 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:18:48,446 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:18:48,447 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:18:48,447 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:18:48,447 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:18:48,447 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:18:48,447 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:18:48,447 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:18:48,448 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:18:48,448 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:18:48,448 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:18:48,448 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:18:48,448 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:18:48,448 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:18:48,448 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:18:48,449 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:18:48,449 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:18:48,449 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_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/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 -> 56095c86866c7ca9fc704f1b38229d948862465a [2018-11-18 12:18:48,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:18:48,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:18:48,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:18:48,491 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:18:48,491 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:18:48,492 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test_cut_trace_true-termination.c_true-unreach-call.i [2018-11-18 12:18:48,543 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/data/558e0e265/d5ab207160524c9db6b9238333596441/FLAGc89e30886 [2018-11-18 12:18:48,882 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:18:48,882 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/sv-benchmarks/c/ldv-regression/test_cut_trace_true-termination.c_true-unreach-call.i [2018-11-18 12:18:48,887 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/data/558e0e265/d5ab207160524c9db6b9238333596441/FLAGc89e30886 [2018-11-18 12:18:49,304 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/data/558e0e265/d5ab207160524c9db6b9238333596441 [2018-11-18 12:18:49,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:18:49,308 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:18:49,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:18:49,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:18:49,313 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:18:49,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb347f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49, skipping insertion in model container [2018-11-18 12:18:49,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:18:49,345 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:18:49,453 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:18:49,456 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:18:49,466 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:18:49,475 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:18:49,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49 WrapperNode [2018-11-18 12:18:49,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:18:49,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:18:49,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:18:49,476 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:18:49,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... [2018-11-18 12:18:49,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:18:49,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:18:49,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:18:49,495 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:18:49,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/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 [2018-11-18 12:18:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:18:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:18:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-18 12:18:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:18:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:18:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-18 12:18:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:18:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:18:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:18:49,663 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:18:49,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:18:49 BoogieIcfgContainer [2018-11-18 12:18:49,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:18:49,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:18:49,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:18:49,667 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:18:49,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:18:49" (1/3) ... [2018-11-18 12:18:49,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486e3387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:18:49, skipping insertion in model container [2018-11-18 12:18:49,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:18:49" (2/3) ... [2018-11-18 12:18:49,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486e3387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:18:49, skipping insertion in model container [2018-11-18 12:18:49,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:18:49" (3/3) ... [2018-11-18 12:18:49,671 INFO L112 eAbstractionObserver]: Analyzing ICFG test_cut_trace_true-termination.c_true-unreach-call.i [2018-11-18 12:18:49,677 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:18:49,682 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:18:49,692 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:18:49,714 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:18:49,714 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:18:49,714 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:18:49,714 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:18:49,714 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:18:49,714 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:18:49,715 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:18:49,715 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:18:49,715 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:18:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-18 12:18:49,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 12:18:49,733 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:18:49,734 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:18:49,736 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:18:49,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:18:49,742 INFO L82 PathProgramCache]: Analyzing trace with hash -417355086, now seen corresponding path program 1 times [2018-11-18 12:18:49,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:18:49,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:18:49,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:18:49,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:18:49,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:18:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:18:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:18:49,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:18:49,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:18:49,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:18:49,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:18:49,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:18:49,869 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-11-18 12:18:49,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:18:49,900 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-11-18 12:18:49,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:18:49,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-18 12:18:49,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:18:49,907 INFO L225 Difference]: With dead ends: 29 [2018-11-18 12:18:49,907 INFO L226 Difference]: Without dead ends: 11 [2018-11-18 12:18:49,909 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:18:49,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-18 12:18:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-18 12:18:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 12:18:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-11-18 12:18:49,935 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 8 [2018-11-18 12:18:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:18:49,936 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-11-18 12:18:49,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:18:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-18 12:18:49,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 12:18:49,936 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:18:49,936 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:18:49,937 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:18:49,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:18:49,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1648524013, now seen corresponding path program 1 times [2018-11-18 12:18:49,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:18:49,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:18:49,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:18:49,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:18:49,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:18:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:18:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:18:50,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:18:50,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 12:18:50,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 12:18:50,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:18:50,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:18:50,027 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 4 states. [2018-11-18 12:18:50,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:18:50,063 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-18 12:18:50,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:18:50,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 12:18:50,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:18:50,063 INFO L225 Difference]: With dead ends: 11 [2018-11-18 12:18:50,063 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:18:50,064 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:18:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:18:50,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:18:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:18:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:18:50,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-18 12:18:50,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:18:50,065 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:18:50,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 12:18:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:18:50,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:18:50,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:18:50,080 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:18:50,080 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:18:50,081 INFO L425 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-18 12:18:50,081 INFO L425 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2018-11-18 12:18:50,081 INFO L425 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2018-11-18 12:18:50,081 INFO L428 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2018-11-18 12:18:50,081 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:18:50,081 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:18:50,081 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:18:50,081 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:18:50,082 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2018-11-18 12:18:50,082 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 20) no Hoare annotation was computed. [2018-11-18 12:18:50,082 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-18 12:18:50,082 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-18 12:18:50,082 INFO L421 ceAbstractionStarter]: At program point L18-2(line 18) the Hoare annotation is: false [2018-11-18 12:18:50,082 INFO L425 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-11-18 12:18:50,082 INFO L421 ceAbstractionStarter]: At program point L16-2(line 16) the Hoare annotation is: false [2018-11-18 12:18:50,082 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-11-18 12:18:50,083 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 20) no Hoare annotation was computed. [2018-11-18 12:18:50,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:18:50 BoogieIcfgContainer [2018-11-18 12:18:50,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:18:50,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:18:50,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:18:50,085 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:18:50,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:18:49" (3/4) ... [2018-11-18 12:18:50,088 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:18:50,093 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:18:50,093 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2018-11-18 12:18:50,094 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:18:50,097 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 12:18:50,097 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:18:50,097 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:18:50,128 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e16ee19b-ddf0-481e-8f23-d1d6d6c441d7/bin-2019/uautomizer/witness.graphml [2018-11-18 12:18:50,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:18:50,129 INFO L168 Benchmark]: Toolchain (without parser) took 821.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -128.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:18:50,130 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:18:50,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.74 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:18:50,131 INFO L168 Benchmark]: Boogie Preprocessor took 17.94 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:18:50,131 INFO L168 Benchmark]: RCFGBuilder took 169.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:18:50,132 INFO L168 Benchmark]: TraceAbstraction took 420.54 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: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:18:50,132 INFO L168 Benchmark]: Witness Printer took 43.29 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:18:50,134 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.74 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.94 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 169.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -180.6 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 420.54 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: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.29 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...