./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b_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_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7408fe5ba42f5c474832c90e26f3e7ef2342554c ....................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 21:11:40,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 21:11:40,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 21:11:40,615 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 21:11:40,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 21:11:40,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 21:11:40,616 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 21:11:40,617 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 21:11:40,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 21:11:40,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 21:11:40,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 21:11:40,620 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 21:11:40,620 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 21:11:40,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 21:11:40,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 21:11:40,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 21:11:40,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 21:11:40,624 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 21:11:40,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 21:11:40,626 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 21:11:40,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 21:11:40,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 21:11:40,629 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 21:11:40,629 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 21:11:40,629 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 21:11:40,630 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 21:11:40,630 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 21:11:40,631 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 21:11:40,631 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 21:11:40,632 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 21:11:40,632 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 21:11:40,632 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 21:11:40,632 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 21:11:40,632 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 21:11:40,633 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 21:11:40,633 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 21:11:40,633 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 21:11:40,640 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 21:11:40,641 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 21:11:40,641 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 21:11:40,641 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 21:11:40,642 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 21:11:40,642 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 21:11:40,642 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 21:11:40,642 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 21:11:40,642 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 21:11:40,642 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 21:11:40,642 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 21:11:40,643 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 21:11:40,643 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 21:11:40,643 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 21:11:40,643 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 21:11:40,644 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 21:11:40,644 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 21:11:40,644 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 21:11:40,644 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 21:11:40,644 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 21:11:40,644 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 21:11:40,645 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 21:11:40,645 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 21:11:40,645 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 21:11:40,645 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 21:11:40,645 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 21:11:40,645 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 21:11:40,645 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 21:11:40,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:11:40,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 21:11:40,646 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 21:11:40,646 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 21:11:40,646 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 21:11:40,646 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 21:11:40,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 21:11:40,647 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 21:11:40,647 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7408fe5ba42f5c474832c90e26f3e7ef2342554c [2018-12-08 21:11:40,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 21:11:40,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 21:11:40,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 21:11:40,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 21:11:40,681 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 21:11:40,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-12-08 21:11:40,721 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/data/d34a6960d/b569eb0148734cd2a9537266ca1dad43/FLAGab752e5ff [2018-12-08 21:11:41,111 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 21:11:41,111 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-12-08 21:11:41,115 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/data/d34a6960d/b569eb0148734cd2a9537266ca1dad43/FLAGab752e5ff [2018-12-08 21:11:41,123 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/data/d34a6960d/b569eb0148734cd2a9537266ca1dad43 [2018-12-08 21:11:41,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 21:11:41,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 21:11:41,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 21:11:41,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 21:11:41,128 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 21:11:41,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23030215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41, skipping insertion in model container [2018-12-08 21:11:41,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 21:11:41,144 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 21:11:41,225 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:11:41,228 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 21:11:41,237 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:11:41,244 INFO L195 MainTranslator]: Completed translation [2018-12-08 21:11:41,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41 WrapperNode [2018-12-08 21:11:41,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 21:11:41,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 21:11:41,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 21:11:41,245 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 21:11:41,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 21:11:41,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 21:11:41,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 21:11:41,256 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 21:11:41,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... [2018-12-08 21:11:41,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 21:11:41,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 21:11:41,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 21:11:41,296 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 21:11:41,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:11:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 21:11:41,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 21:11:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 21:11:41,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 21:11:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 21:11:41,329 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 21:11:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-08 21:11:41,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-08 21:11:41,405 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 21:11:41,405 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-08 21:11:41,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:11:41 BoogieIcfgContainer [2018-12-08 21:11:41,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 21:11:41,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 21:11:41,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 21:11:41,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 21:11:41,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:11:41" (1/3) ... [2018-12-08 21:11:41,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106c7675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:11:41, skipping insertion in model container [2018-12-08 21:11:41,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:41" (2/3) ... [2018-12-08 21:11:41,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106c7675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:11:41, skipping insertion in model container [2018-12-08 21:11:41,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:11:41" (3/3) ... [2018-12-08 21:11:41,410 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i [2018-12-08 21:11:41,415 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 21:11:41,419 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 21:11:41,428 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 21:11:41,445 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 21:11:41,445 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 21:11:41,445 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 21:11:41,445 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 21:11:41,446 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 21:11:41,446 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 21:11:41,446 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 21:11:41,446 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 21:11:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-08 21:11:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 21:11:41,458 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:11:41,459 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:11:41,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:11:41,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:11:41,463 INFO L82 PathProgramCache]: Analyzing trace with hash 728031169, now seen corresponding path program 1 times [2018-12-08 21:11:41,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:11:41,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:11:41,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,492 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:11:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:11:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:11:41,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:11:41,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 21:11:41,523 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:11:41,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 21:11:41,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 21:11:41,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 21:11:41,534 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-12-08 21:11:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:11:41,546 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2018-12-08 21:11:41,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 21:11:41,547 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-12-08 21:11:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:11:41,551 INFO L225 Difference]: With dead ends: 37 [2018-12-08 21:11:41,551 INFO L226 Difference]: Without dead ends: 14 [2018-12-08 21:11:41,553 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 [2018-12-08 21:11:41,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-08 21:11:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-08 21:11:41,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-08 21:11:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-12-08 21:11:41,573 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2018-12-08 21:11:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:11:41,573 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-12-08 21:11:41,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 21:11:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-08 21:11:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 21:11:41,574 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:11:41,574 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:11:41,574 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:11:41,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:11:41,574 INFO L82 PathProgramCache]: Analyzing trace with hash 701249060, now seen corresponding path program 1 times [2018-12-08 21:11:41,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:11:41,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:11:41,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,575 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:11:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:11:41,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:11:41,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:11:41,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 21:11:41,596 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:11:41,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 21:11:41,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 21:11:41,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 21:11:41,597 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2018-12-08 21:11:41,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:11:41,604 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-12-08 21:11:41,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 21:11:41,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 21:11:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:11:41,605 INFO L225 Difference]: With dead ends: 20 [2018-12-08 21:11:41,605 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 21:11:41,605 INFO L631 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 [2018-12-08 21:11:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 21:11:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-08 21:11:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-08 21:11:41,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-12-08 21:11:41,608 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2018-12-08 21:11:41,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:11:41,608 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-12-08 21:11:41,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 21:11:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-08 21:11:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 21:11:41,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:11:41,608 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:11:41,608 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:11:41,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:11:41,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1130211510, now seen corresponding path program 1 times [2018-12-08 21:11:41,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:11:41,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:11:41,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:11:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:11:41,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:11:41,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:11:41,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 21:11:41,624 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:11:41,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 21:11:41,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 21:11:41,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 21:11:41,625 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2018-12-08 21:11:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:11:41,634 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2018-12-08 21:11:41,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 21:11:41,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-12-08 21:11:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:11:41,635 INFO L225 Difference]: With dead ends: 25 [2018-12-08 21:11:41,635 INFO L226 Difference]: Without dead ends: 16 [2018-12-08 21:11:41,635 INFO L631 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 [2018-12-08 21:11:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-08 21:11:41,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-08 21:11:41,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-08 21:11:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-08 21:11:41,638 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 14 [2018-12-08 21:11:41,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:11:41,638 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-08 21:11:41,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 21:11:41,638 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-08 21:11:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 21:11:41,638 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:11:41,638 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:11:41,639 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:11:41,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:11:41,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1842576314, now seen corresponding path program 1 times [2018-12-08 21:11:41,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:11:41,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:11:41,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:11:41,639 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:11:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:11:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 21:11:41,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 21:11:41,657 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 21:11:41,657 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-12-08 21:11:41,658 INFO L205 CegarAbsIntRunner]: [0], [4], [11], [13], [20], [22], [26], [33], [45], [48], [50], [56], [57], [58], [60] [2018-12-08 21:11:41,677 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 21:11:41,677 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 21:11:41,780 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 21:11:41,781 INFO L272 AbstractInterpreter]: Visited 14 different actions 42 times. Merged at 5 different actions 17 times. Widened at 2 different actions 4 times. Performed 150 root evaluator evaluations with a maximum evaluation depth of 4. Performed 150 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 8 fixpoints after 4 different actions. Largest state had 3 variables. [2018-12-08 21:11:41,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:11:41,787 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 21:11:41,814 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 66.67% of their original sizes. [2018-12-08 21:11:41,814 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 21:11:41,841 INFO L418 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2018-12-08 21:11:41,841 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 21:11:41,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 21:11:41,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-12-08 21:11:41,841 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:11:41,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 21:11:41,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 21:11:41,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:11:41,842 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2018-12-08 21:11:41,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:11:41,922 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2018-12-08 21:11:41,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 21:11:41,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-12-08 21:11:41,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:11:41,923 INFO L225 Difference]: With dead ends: 26 [2018-12-08 21:11:41,923 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 21:11:41,923 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:11:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 21:11:41,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 21:11:41,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 21:11:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 21:11:41,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-08 21:11:41,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:11:41,924 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 21:11:41,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 21:11:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 21:11:41,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 21:11:41,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 21:11:41,972 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 21:11:41,972 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:11:41,972 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:11:41,972 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 21:11:41,972 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 21:11:41,972 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 21:11:41,972 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-08 21:11:41,972 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 27) no Hoare annotation was computed. [2018-12-08 21:11:41,972 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (= main_~k~0 4) (not (= main_~j~0 0))) [2018-12-08 21:11:41,972 INFO L444 ceAbstractionStarter]: At program point L21-3(lines 15 24) the Hoare annotation is: (or (and (= main_~k~0 4) (not (= main_~j~0 0))) (and (<= (+ main_~j~0 100) 0) (= main_~k~0 9) (= main_~i~0 0))) [2018-12-08 21:11:41,972 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 17 19) the Hoare annotation is: true [2018-12-08 21:11:41,972 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 19) no Hoare annotation was computed. [2018-12-08 21:11:41,972 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 15 24) the Hoare annotation is: (and (= main_~k~0 4) (not (= main_~j~0 0))) [2018-12-08 21:11:41,973 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 27) no Hoare annotation was computed. [2018-12-08 21:11:41,973 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 27) the Hoare annotation is: true [2018-12-08 21:11:41,973 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-08 21:11:41,973 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-08 21:11:41,973 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-08 21:11:41,973 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-08 21:11:41,973 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-08 21:11:41,973 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-08 21:11:41,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:11:41 BoogieIcfgContainer [2018-12-08 21:11:41,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 21:11:41,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 21:11:41,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 21:11:41,979 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 21:11:41,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:11:41" (3/4) ... [2018-12-08 21:11:41,982 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 21:11:41,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 21:11:41,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 21:11:41,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-08 21:11:41,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-08 21:11:41,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 21:11:41,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 21:11:42,011 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_93c6df33-c2a7-48ad-9279-dcfbb5c7b680/bin-2019/utaipan/witness.graphml [2018-12-08 21:11:42,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 21:11:42,011 INFO L168 Benchmark]: Toolchain (without parser) took 886.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 953.5 MB in the beginning and 1.0 GB in the end (delta: -65.2 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. [2018-12-08 21:11:42,012 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:11:42,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.96 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 21:11:42,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.65 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:11:42,013 INFO L168 Benchmark]: Boogie Preprocessor took 39.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-08 21:11:42,013 INFO L168 Benchmark]: RCFGBuilder took 109.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-08 21:11:42,013 INFO L168 Benchmark]: TraceAbstraction took 572.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. [2018-12-08 21:11:42,014 INFO L168 Benchmark]: Witness Printer took 31.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-12-08 21:11:42,015 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.96 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.65 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 109.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 572.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. * Witness Printer took 31.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 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: 15]: Loop Invariant Derived loop invariant: (k == 4 && !(j == 0)) || ((j + 100 <= 0 && k == 9) && i == 0) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: k == 4 && !(j == 0) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 10 SDslu, 63 SDs, 0 SdLazy, 9 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s 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, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.869047619047619 AbsIntWeakeningRatio, 0.42857142857142855 AbsIntAvgWeakeningVarsNumRemoved, 0.35714285714285715 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 21 NumberOfFragments, 43 HoareAnnotationTreeSize, 13 FomulaSimplifications, 4 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...