./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/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 cc52fae450c71cb08003ff68124573964734a280 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 13:21:30,703 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:21:30,704 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:21:30,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:21:30,710 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:21:30,711 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:21:30,711 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:21:30,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:21:30,713 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:21:30,714 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:21:30,714 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:21:30,714 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:21:30,715 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:21:30,715 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:21:30,716 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:21:30,716 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:21:30,717 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:21:30,718 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:21:30,719 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:21:30,720 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:21:30,720 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:21:30,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:21:30,722 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:21:30,722 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:21:30,722 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:21:30,723 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:21:30,723 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:21:30,724 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:21:30,724 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:21:30,725 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:21:30,725 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:21:30,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:21:30,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:21:30,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:21:30,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:21:30,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:21:30,726 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 13:21:30,734 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:21:30,734 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:21:30,734 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 13:21:30,735 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 13:21:30,735 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 13:21:30,735 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 13:21:30,735 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 13:21:30,735 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:21:30,735 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 13:21:30,736 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 13:21:30,737 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 13:21:30,737 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 13:21:30,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 13:21:30,738 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_309d1c89-e763-4c71-bbc0-d31f84e85bf4/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 -> cc52fae450c71cb08003ff68124573964734a280 [2018-12-02 13:21:30,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:21:30,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:21:30,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:21:30,768 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:21:30,768 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:21:30,769 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-12-02 13:21:30,812 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/data/c552577b2/c21b014b832d49e985b4646cc20d989a/FLAG160814627 [2018-12-02 13:21:31,237 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:21:31,237 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/sv-benchmarks/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2018-12-02 13:21:31,241 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/data/c552577b2/c21b014b832d49e985b4646cc20d989a/FLAG160814627 [2018-12-02 13:21:31,251 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/data/c552577b2/c21b014b832d49e985b4646cc20d989a [2018-12-02 13:21:31,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:21:31,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:21:31,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:21:31,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:21:31,257 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:21:31,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359bc049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31, skipping insertion in model container [2018-12-02 13:21:31,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:21:31,274 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:21:31,361 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:21:31,363 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:21:31,372 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:21:31,379 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:21:31,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31 WrapperNode [2018-12-02 13:21:31,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:21:31,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:21:31,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:21:31,380 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:21:31,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:21:31,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:21:31,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:21:31,395 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:21:31,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... [2018-12-02 13:21:31,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:21:31,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:21:31,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:21:31,407 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:21:31,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/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 [2018-12-02 13:21:31,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 13:21:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 13:21:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:21:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:21:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 13:21:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 13:21:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 13:21:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 13:21:31,562 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:21:31,563 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 13:21:31,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:21:31 BoogieIcfgContainer [2018-12-02 13:21:31,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:21:31,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 13:21:31,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 13:21:31,565 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 13:21:31,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:21:31" (1/3) ... [2018-12-02 13:21:31,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2334c52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:21:31, skipping insertion in model container [2018-12-02 13:21:31,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:21:31" (2/3) ... [2018-12-02 13:21:31,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2334c52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:21:31, skipping insertion in model container [2018-12-02 13:21:31,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:21:31" (3/3) ... [2018-12-02 13:21:31,567 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007_true-unreach-call_true-termination.c.i [2018-12-02 13:21:31,573 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 13:21:31,578 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 13:21:31,591 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 13:21:31,610 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 13:21:31,610 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 13:21:31,610 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 13:21:31,610 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 13:21:31,610 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 13:21:31,611 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 13:21:31,611 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 13:21:31,611 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 13:21:31,611 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 13:21:31,621 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-02 13:21:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 13:21:31,624 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:21:31,625 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:21:31,626 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:21:31,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:21:31,630 INFO L82 PathProgramCache]: Analyzing trace with hash 439143249, now seen corresponding path program 1 times [2018-12-02 13:21:31,631 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:21:31,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:21:31,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:31,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:21:31,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:21:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:21:31,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:21:31,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 13:21:31,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 13:21:31,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 13:21:31,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 13:21:31,709 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-12-02 13:21:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:21:31,720 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-12-02 13:21:31,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 13:21:31,721 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-12-02 13:21:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:21:31,728 INFO L225 Difference]: With dead ends: 33 [2018-12-02 13:21:31,728 INFO L226 Difference]: Without dead ends: 14 [2018-12-02 13:21:31,730 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 13:21:31,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-02 13:21:31,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-02 13:21:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-02 13:21:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-12-02 13:21:31,753 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-12-02 13:21:31,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:21:31,754 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-12-02 13:21:31,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 13:21:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-12-02 13:21:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 13:21:31,754 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:21:31,754 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:21:31,755 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:21:31,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:21:31,755 INFO L82 PathProgramCache]: Analyzing trace with hash 428984518, now seen corresponding path program 1 times [2018-12-02 13:21:31,755 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:21:31,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:21:31,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:31,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:21:31,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:21:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:21:31,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:21:31,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 13:21:31,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 13:21:31,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 13:21:31,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-02 13:21:31,883 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 7 states. [2018-12-02 13:21:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:21:31,934 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-12-02 13:21:31,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 13:21:31,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-12-02 13:21:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:21:31,936 INFO L225 Difference]: With dead ends: 21 [2018-12-02 13:21:31,936 INFO L226 Difference]: Without dead ends: 16 [2018-12-02 13:21:31,937 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-02 13:21:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-02 13:21:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-12-02 13:21:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 13:21:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-12-02 13:21:31,941 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2018-12-02 13:21:31,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:21:31,941 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-12-02 13:21:31,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 13:21:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-12-02 13:21:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 13:21:31,941 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:21:31,942 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:21:31,942 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:21:31,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:21:31,942 INFO L82 PathProgramCache]: Analyzing trace with hash -277157879, now seen corresponding path program 1 times [2018-12-02 13:21:31,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:21:31,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:21:31,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:31,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:21:31,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:21:32,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:21:32,062 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:21:32,062 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 13:21:32,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:21:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:21:32,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:21:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:21:32,197 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 13:21:32,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-12-02 13:21:32,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-02 13:21:32,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-02 13:21:32,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-12-02 13:21:32,199 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 14 states. [2018-12-02 13:21:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:21:32,320 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2018-12-02 13:21:32,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 13:21:32,320 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2018-12-02 13:21:32,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:21:32,320 INFO L225 Difference]: With dead ends: 28 [2018-12-02 13:21:32,320 INFO L226 Difference]: Without dead ends: 22 [2018-12-02 13:21:32,321 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-12-02 13:21:32,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-02 13:21:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-12-02 13:21:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-02 13:21:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-12-02 13:21:32,324 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2018-12-02 13:21:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:21:32,324 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-12-02 13:21:32,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-02 13:21:32,324 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-12-02 13:21:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 13:21:32,325 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 13:21:32,325 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:21:32,325 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 13:21:32,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:21:32,325 INFO L82 PathProgramCache]: Analyzing trace with hash -608518108, now seen corresponding path program 1 times [2018-12-02 13:21:32,325 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:21:32,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:21:32,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:32,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:21:32,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:21:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:21:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 13:21:32,433 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 13:21:32,433 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 13:21:32,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:21:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:21:32,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 13:21:32,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:21:32,569 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 13:21:32,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2018-12-02 13:21:32,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-02 13:21:32,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-02 13:21:32,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-12-02 13:21:32,570 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 17 states. [2018-12-02 13:21:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:21:32,795 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2018-12-02 13:21:32,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-02 13:21:32,795 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-12-02 13:21:32,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 13:21:32,795 INFO L225 Difference]: With dead ends: 28 [2018-12-02 13:21:32,795 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 13:21:32,796 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2018-12-02 13:21:32,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 13:21:32,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 13:21:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 13:21:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 13:21:32,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-12-02 13:21:32,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 13:21:32,797 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 13:21:32,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-02 13:21:32,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 13:21:32,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 13:21:32,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 13:21:32,877 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 13:21:32,877 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 13:21:32,877 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 13:21:32,877 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 13:21:32,877 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 13:21:32,878 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 13:21:32,878 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2018-12-02 13:21:32,878 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2018-12-02 13:21:32,878 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-02 13:21:32,878 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 21) no Hoare annotation was computed. [2018-12-02 13:21:32,878 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-12-02 13:21:32,878 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 15 21) no Hoare annotation was computed. [2018-12-02 13:21:32,878 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2018-12-02 13:21:32,878 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 main_~i~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse0 (* 3 main_~n~0)))) [2018-12-02 13:21:32,878 INFO L444 ceAbstractionStarter]: At program point L14-3(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 main_~n~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-12-02 13:21:32,878 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-02 13:21:32,879 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-02 13:21:32,879 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-02 13:21:32,879 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-02 13:21:32,879 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-02 13:21:32,879 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-02 13:21:32,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:21:32 BoogieIcfgContainer [2018-12-02 13:21:32,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 13:21:32,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:21:32,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:21:32,887 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:21:32,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:21:31" (3/4) ... [2018-12-02 13:21:32,890 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 13:21:32,895 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 13:21:32,895 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 13:21:32,895 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-02 13:21:32,898 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-02 13:21:32,899 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 13:21:32,899 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 13:21:32,899 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 13:21:32,927 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_309d1c89-e763-4c71-bbc0-d31f84e85bf4/bin-2019/uautomizer/witness.graphml [2018-12-02 13:21:32,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:21:32,928 INFO L168 Benchmark]: Toolchain (without parser) took 1674.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 956.0 MB in the beginning and 848.8 MB in the end (delta: 107.2 MB). Peak memory consumption was 217.8 MB. Max. memory is 11.5 GB. [2018-12-02 13:21:32,929 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:21:32,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.68 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:21:32,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.67 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:21:32,929 INFO L168 Benchmark]: Boogie Preprocessor took 11.98 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:21:32,929 INFO L168 Benchmark]: RCFGBuilder took 156.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-02 13:21:32,930 INFO L168 Benchmark]: TraceAbstraction took 1323.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 855.8 MB in the end (delta: 234.4 MB). Peak memory consumption was 234.4 MB. Max. memory is 11.5 GB. [2018-12-02 13:21:32,930 INFO L168 Benchmark]: Witness Printer took 40.01 ms. Allocated memory is still 1.1 GB. Free memory was 855.8 MB in the beginning and 848.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-02 13:21:32,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 124.68 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 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 14.67 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.98 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 156.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -145.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1323.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 855.8 MB in the end (delta: 234.4 MB). Peak memory consumption was 234.4 MB. Max. memory is 11.5 GB. * Witness Printer took 40.01 ms. Allocated memory is still 1.1 GB. Free memory was 855.8 MB in the beginning and 848.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: (a + b <= 3 * i && 3 * i <= a + b) && a + b <= 3 * n - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 23 SDslu, 128 SDs, 0 SdLazy, 256 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 21 NumberOfFragments, 42 HoareAnnotationTreeSize, 12 FomulaSimplifications, 97 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 145 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 8051 SizeOfPredicates, 6 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...