./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/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 f4433bb60ef050acea7db74543af3a05ddf5a434 ........................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 09:19:20,719 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:19:20,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:19:20,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:19:20,727 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:19:20,728 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:19:20,728 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:19:20,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:19:20,731 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:19:20,731 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:19:20,732 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:19:20,732 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:19:20,733 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:19:20,733 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:19:20,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:19:20,735 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:19:20,735 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:19:20,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:19:20,738 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:19:20,739 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:19:20,739 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:19:20,740 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:19:20,742 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:19:20,742 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:19:20,742 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:19:20,743 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:19:20,743 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:19:20,744 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:19:20,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:19:20,745 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:19:20,745 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:19:20,746 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:19:20,746 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:19:20,746 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:19:20,746 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:19:20,747 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:19:20,747 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 09:19:20,754 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:19:20,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:19:20,754 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 09:19:20,754 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 09:19:20,755 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 09:19:20,755 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 09:19:20,755 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 09:19:20,755 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 09:19:20,756 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 09:19:20,757 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:19:20,757 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:19:20,757 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 09:19:20,757 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:19:20,757 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:19:20,757 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 09:19:20,758 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 09:19:20,758 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:19:20,758 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:19:20,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 09:19:20,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 09:19:20,758 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 09:19:20,758 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 09:19:20,759 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 09:19:20,759 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_5671fdd0-94af-48e3-9fee-757431a3c744/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 -> f4433bb60ef050acea7db74543af3a05ddf5a434 [2018-11-23 09:19:20,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:19:20,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:19:20,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:19:20,792 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:19:20,792 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:19:20,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector-regression/signextension_true-unreach-call_true-termination.c [2018-11-23 09:19:20,827 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/data/8b26b8b5a/b4a0b03fe9b94ace988b7f104a3bc484/FLAGf6c467486 [2018-11-23 09:19:21,208 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:19:21,208 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/sv-benchmarks/c/bitvector-regression/signextension_true-unreach-call_true-termination.c [2018-11-23 09:19:21,212 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/data/8b26b8b5a/b4a0b03fe9b94ace988b7f104a3bc484/FLAGf6c467486 [2018-11-23 09:19:21,220 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/data/8b26b8b5a/b4a0b03fe9b94ace988b7f104a3bc484 [2018-11-23 09:19:21,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:19:21,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:19:21,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:19:21,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:19:21,225 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:19:21,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb4fcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21, skipping insertion in model container [2018-11-23 09:19:21,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:19:21,245 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:19:21,344 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:19:21,347 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:19:21,356 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:19:21,363 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:19:21,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21 WrapperNode [2018-11-23 09:19:21,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:19:21,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:19:21,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:19:21,364 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:19:21,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:19:21,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:19:21,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:19:21,376 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:19:21,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2018-11-23 09:19:21,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:19:21,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:19:21,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:19:21,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:19:21,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/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 [2018-11-23 09:19:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 09:19:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 09:19:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:19:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:19:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 09:19:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 09:19:21,550 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:19:21,551 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 09:19:21,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:21 BoogieIcfgContainer [2018-11-23 09:19:21,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:19:21,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 09:19:21,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 09:19:21,554 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 09:19:21,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:19:21" (1/3) ... [2018-11-23 09:19:21,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec09882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:21, skipping insertion in model container [2018-11-23 09:19:21,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (2/3) ... [2018-11-23 09:19:21,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec09882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:21, skipping insertion in model container [2018-11-23 09:19:21,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:21" (3/3) ... [2018-11-23 09:19:21,556 INFO L112 eAbstractionObserver]: Analyzing ICFG signextension_true-unreach-call_true-termination.c [2018-11-23 09:19:21,562 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 09:19:21,567 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 09:19:21,577 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 09:19:21,594 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 09:19:21,595 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 09:19:21,595 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 09:19:21,595 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 09:19:21,595 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:19:21,595 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:19:21,595 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 09:19:21,596 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:19:21,596 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 09:19:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-23 09:19:21,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 09:19:21,611 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:19:21,612 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:19:21,614 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:19:21,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:19:21,618 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2018-11-23 09:19:21,619 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:19:21,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:19:21,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:19:21,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:19:21,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:19:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:19:21,887 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 28 [2018-11-23 09:19:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:19:21,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:19:21,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 09:19:21,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 09:19:21,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 09:19:21,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:19:21,903 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-23 09:19:21,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:19:21,920 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-23 09:19:21,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 09:19:21,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 09:19:21,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 09:19:21,925 INFO L225 Difference]: With dead ends: 16 [2018-11-23 09:19:21,925 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 09:19:21,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 09:19:21,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 09:19:21,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 09:19:21,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 09:19:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 09:19:21,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-23 09:19:21,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 09:19:21,942 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:19:21,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 09:19:21,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 09:19:21,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 09:19:21,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 09:19:21,954 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 09:19:21,954 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:19:21,955 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 09:19:21,955 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 09:19:21,955 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 09:19:21,955 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 09:19:21,955 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 3 27) the Hoare annotation is: true [2018-11-23 09:19:21,955 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 3 27) no Hoare annotation was computed. [2018-11-23 09:19:21,955 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 3 27) no Hoare annotation was computed. [2018-11-23 09:19:21,955 INFO L444 ceAbstractionStarter]: At program point L21(lines 3 27) the Hoare annotation is: false [2018-11-23 09:19:21,956 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2018-11-23 09:19:21,956 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 22) no Hoare annotation was computed. [2018-11-23 09:19:21,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:19:21 BoogieIcfgContainer [2018-11-23 09:19:21,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 09:19:21,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 09:19:21,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 09:19:21,964 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 09:19:21,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:21" (3/4) ... [2018-11-23 09:19:21,969 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 09:19:21,975 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 09:19:21,975 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 09:19:21,979 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 09:19:21,979 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 09:19:21,979 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 09:19:22,003 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5671fdd0-94af-48e3-9fee-757431a3c744/bin-2019/uautomizer/witness.graphml [2018-11-23 09:19:22,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 09:19:22,004 INFO L168 Benchmark]: Toolchain (without parser) took 781.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -106.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-11-23 09:19:22,004 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:19:22,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:19:22,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:19:22,005 INFO L168 Benchmark]: Boogie Preprocessor took 10.36 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:19:22,006 INFO L168 Benchmark]: RCFGBuilder took 164.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 09:19:22,006 INFO L168 Benchmark]: TraceAbstraction took 412.01 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 09:19:22,007 INFO L168 Benchmark]: Witness Printer took 39.34 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. [2018-11-23 09:19:22,009 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 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 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.36 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 164.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 412.01 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 39.34 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: 25]: 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: 3]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 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...