./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_true-unreach-call_ground_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_true-unreach-call_ground_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/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 a2f74ce7922c40e74e42c65aab9bfb3ac8f3d0eb ......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:47:59,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:47:59,594 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:47:59,603 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:47:59,604 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:47:59,604 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:47:59,605 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:47:59,606 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:47:59,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:47:59,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:47:59,609 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:47:59,609 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:47:59,609 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:47:59,610 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:47:59,611 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:47:59,611 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:47:59,612 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:47:59,613 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:47:59,614 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:47:59,615 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:47:59,616 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:47:59,617 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:47:59,618 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:47:59,619 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:47:59,619 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:47:59,619 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:47:59,620 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:47:59,621 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:47:59,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:47:59,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:47:59,622 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:47:59,623 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:47:59,623 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:47:59,623 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:47:59,624 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:47:59,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:47:59,624 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:47:59,633 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:47:59,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:47:59,634 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:47:59,634 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:47:59,634 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:47:59,635 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:47:59,635 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:47:59,635 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:47:59,635 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:47:59,635 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:47:59,635 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:47:59,635 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:47:59,636 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:47:59,636 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:47:59,636 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:47:59,636 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:47:59,637 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:47:59,637 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:47:59,637 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:47:59,637 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:47:59,637 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:47:59,637 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:47:59,637 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:47:59,638 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:47:59,638 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:47:59,638 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:47:59,638 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:47:59,638 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:47:59,638 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:47:59,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:47:59,639 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:47:59,639 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:47:59,639 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:47:59,639 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:47:59,639 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:47:59,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:47:59,639 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:47:59,640 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_40a3a421-f025-4fb5-8a69-c323938320e0/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 -> a2f74ce7922c40e74e42c65aab9bfb3ac8f3d0eb [2018-11-18 13:47:59,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:47:59,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:47:59,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:47:59,677 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:47:59,678 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:47:59,678 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_true-unreach-call_ground_true-termination.i [2018-11-18 13:47:59,721 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/data/ad7a1124b/f1c15675a1ff4a478423c41128adb0b2/FLAG06f10e501 [2018-11-18 13:48:00,118 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:48:00,118 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_true-unreach-call_ground_true-termination.i [2018-11-18 13:48:00,122 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/data/ad7a1124b/f1c15675a1ff4a478423c41128adb0b2/FLAG06f10e501 [2018-11-18 13:48:00,131 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/data/ad7a1124b/f1c15675a1ff4a478423c41128adb0b2 [2018-11-18 13:48:00,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:48:00,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:48:00,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:48:00,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:48:00,136 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:48:00,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255f5b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00, skipping insertion in model container [2018-11-18 13:48:00,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:48:00,160 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:48:00,268 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:48:00,273 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:48:00,287 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:48:00,296 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:48:00,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00 WrapperNode [2018-11-18 13:48:00,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:48:00,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:48:00,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:48:00,297 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:48:00,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:48:00,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:48:00,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:48:00,320 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:48:00,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... [2018-11-18 13:48:00,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:48:00,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:48:00,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:48:00,384 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:48:00,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/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 [2018-11-18 13:48:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2018-11-18 13:48:00,425 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2018-11-18 13:48:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:48:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:48:00,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:48:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:48:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2018-11-18 13:48:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2018-11-18 13:48:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:48:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:48:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:48:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:48:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:48:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 13:48:00,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 13:48:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:48:00,638 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:48:00,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:00 BoogieIcfgContainer [2018-11-18 13:48:00,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:48:00,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:48:00,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:48:00,641 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:48:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:48:00" (1/3) ... [2018-11-18 13:48:00,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db16a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:48:00, skipping insertion in model container [2018-11-18 13:48:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:00" (2/3) ... [2018-11-18 13:48:00,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db16a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:48:00, skipping insertion in model container [2018-11-18 13:48:00,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:00" (3/3) ... [2018-11-18 13:48:00,644 INFO L112 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_true-unreach-call_ground_true-termination.i [2018-11-18 13:48:00,653 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:48:00,659 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:48:00,673 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:48:00,700 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:48:00,700 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:48:00,701 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:48:00,701 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:48:00,701 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:48:00,701 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:48:00,701 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:48:00,701 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:48:00,717 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2018-11-18 13:48:00,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:48:00,722 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:00,722 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:00,724 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:00,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:00,729 INFO L82 PathProgramCache]: Analyzing trace with hash 54606557, now seen corresponding path program 1 times [2018-11-18 13:48:00,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:48:00,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:48:00,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:00,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:48:00,772 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:48:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:00,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:00,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:48:00,906 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:48:00,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:48:00,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:48:00,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:48:00,918 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 4 states. [2018-11-18 13:48:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:01,003 INFO L93 Difference]: Finished difference Result 131 states and 181 transitions. [2018-11-18 13:48:01,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:48:01,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 13:48:01,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:01,011 INFO L225 Difference]: With dead ends: 131 [2018-11-18 13:48:01,011 INFO L226 Difference]: Without dead ends: 63 [2018-11-18 13:48:01,014 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:48:01,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-18 13:48:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-11-18 13:48:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-18 13:48:01,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2018-11-18 13:48:01,045 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 14 [2018-11-18 13:48:01,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:01,045 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2018-11-18 13:48:01,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:48:01,045 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2018-11-18 13:48:01,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 13:48:01,047 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:01,047 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:01,047 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:01,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:01,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1644295009, now seen corresponding path program 1 times [2018-11-18 13:48:01,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:48:01,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:48:01,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:01,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:48:01,049 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:48:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:01,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:01,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:48:01,112 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:48:01,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:48:01,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:48:01,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:48:01,114 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand 4 states. [2018-11-18 13:48:01,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:01,134 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2018-11-18 13:48:01,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:48:01,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-18 13:48:01,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:01,135 INFO L225 Difference]: With dead ends: 110 [2018-11-18 13:48:01,135 INFO L226 Difference]: Without dead ends: 67 [2018-11-18 13:48:01,135 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:48:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-18 13:48:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-11-18 13:48:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-18 13:48:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2018-11-18 13:48:01,143 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 78 transitions. Word has length 34 [2018-11-18 13:48:01,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:01,143 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 78 transitions. [2018-11-18 13:48:01,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:48:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 78 transitions. [2018-11-18 13:48:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 13:48:01,144 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:01,144 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:01,144 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:01,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:01,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1851984936, now seen corresponding path program 1 times [2018-11-18 13:48:01,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:48:01,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:48:01,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:01,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:48:01,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:48:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:01,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:01,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:48:01,226 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:48:01,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:48:01,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:48:01,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:48:01,227 INFO L87 Difference]: Start difference. First operand 67 states and 78 transitions. Second operand 5 states. [2018-11-18 13:48:01,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:01,273 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2018-11-18 13:48:01,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:48:01,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-11-18 13:48:01,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:01,274 INFO L225 Difference]: With dead ends: 95 [2018-11-18 13:48:01,274 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:48:01,275 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:48:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:48:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:48:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:48:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:48:01,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-18 13:48:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:01,275 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:48:01,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:48:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:48:01,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:48:01,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:48:01,367 INFO L428 ceAbstractionStarter]: At program point elem_existsENTRY(lines 7 13) the Hoare annotation is: true [2018-11-18 13:48:01,367 INFO L425 ceAbstractionStarter]: For program point elem_existsEXIT(lines 7 13) no Hoare annotation was computed. [2018-11-18 13:48:01,367 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-18 13:48:01,367 INFO L425 ceAbstractionStarter]: For program point elem_existsFINAL(lines 7 13) no Hoare annotation was computed. [2018-11-18 13:48:01,367 INFO L425 ceAbstractionStarter]: For program point L9-1(lines 9 11) no Hoare annotation was computed. [2018-11-18 13:48:01,367 INFO L425 ceAbstractionStarter]: For program point L9-3(lines 9 11) no Hoare annotation was computed. [2018-11-18 13:48:01,367 INFO L421 ceAbstractionStarter]: At program point L9-4(lines 9 11) the Hoare annotation is: (or (and (= elem_exists_~i~0 0) (= elem_exists_~size 0)) (not (= |elem_exists_#in~size| 0))) [2018-11-18 13:48:01,368 INFO L425 ceAbstractionStarter]: For program point L9-5(lines 9 11) no Hoare annotation was computed. [2018-11-18 13:48:01,368 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:48:01,368 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:48:01,368 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:48:01,368 INFO L428 ceAbstractionStarter]: At program point insertENTRY(lines 3 6) the Hoare annotation is: true [2018-11-18 13:48:01,368 INFO L425 ceAbstractionStarter]: For program point insertFINAL(lines 3 6) no Hoare annotation was computed. [2018-11-18 13:48:01,368 INFO L425 ceAbstractionStarter]: For program point insertEXIT(lines 3 6) no Hoare annotation was computed. [2018-11-18 13:48:01,368 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:48:01,368 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:48:01,369 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:48:01,369 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:48:01,369 INFO L421 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (= 0 main_~n~0) (= main_~x~0 0)) [2018-11-18 13:48:01,369 INFO L425 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-11-18 13:48:01,369 INFO L425 ceAbstractionStarter]: For program point L27-2(lines 27 29) no Hoare annotation was computed. [2018-11-18 13:48:01,369 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 14 42) no Hoare annotation was computed. [2018-11-18 13:48:01,369 INFO L425 ceAbstractionStarter]: For program point L27-4(lines 27 29) no Hoare annotation was computed. [2018-11-18 13:48:01,369 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-18 13:48:01,369 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2018-11-18 13:48:01,370 INFO L421 ceAbstractionStarter]: At program point L19-4(lines 19 23) the Hoare annotation is: (and (= 0 main_~n~0) (= main_~x~0 0)) [2018-11-18 13:48:01,370 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 23) no Hoare annotation was computed. [2018-11-18 13:48:01,370 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-11-18 13:48:01,370 INFO L425 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2018-11-18 13:48:01,370 INFO L421 ceAbstractionStarter]: At program point L36-4(lines 36 40) the Hoare annotation is: (and (= main_~n~0 0) (= main_~x~0 0)) [2018-11-18 13:48:01,370 INFO L425 ceAbstractionStarter]: For program point L36-5(lines 36 40) no Hoare annotation was computed. [2018-11-18 13:48:01,370 INFO L421 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: false [2018-11-18 13:48:01,370 INFO L425 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-11-18 13:48:01,370 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 22) no Hoare annotation was computed. [2018-11-18 13:48:01,371 INFO L425 ceAbstractionStarter]: For program point L20-3(lines 20 22) no Hoare annotation was computed. [2018-11-18 13:48:01,371 INFO L421 ceAbstractionStarter]: At program point L20-4(lines 20 22) the Hoare annotation is: false [2018-11-18 13:48:01,371 INFO L425 ceAbstractionStarter]: For program point L37-1(lines 37 39) no Hoare annotation was computed. [2018-11-18 13:48:01,371 INFO L425 ceAbstractionStarter]: For program point L37-3(lines 37 39) no Hoare annotation was computed. [2018-11-18 13:48:01,371 INFO L421 ceAbstractionStarter]: At program point L37-4(lines 37 39) the Hoare annotation is: false [2018-11-18 13:48:01,371 INFO L421 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: false [2018-11-18 13:48:01,371 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-18 13:48:01,371 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 14 42) no Hoare annotation was computed. [2018-11-18 13:48:01,371 INFO L421 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: false [2018-11-18 13:48:01,372 INFO L425 ceAbstractionStarter]: For program point L38-1(line 38) no Hoare annotation was computed. [2018-11-18 13:48:01,372 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 14 42) the Hoare annotation is: true [2018-11-18 13:48:01,372 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-18 13:48:01,372 INFO L425 ceAbstractionStarter]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2018-11-18 13:48:01,372 INFO L421 ceAbstractionStarter]: At program point L30-4(lines 30 34) the Hoare annotation is: (and (= 0 main_~n~0) (= main_~x~0 0)) [2018-11-18 13:48:01,372 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 33) no Hoare annotation was computed. [2018-11-18 13:48:01,372 INFO L425 ceAbstractionStarter]: For program point L31-3(lines 31 33) no Hoare annotation was computed. [2018-11-18 13:48:01,372 INFO L421 ceAbstractionStarter]: At program point L31-4(lines 31 33) the Hoare annotation is: false [2018-11-18 13:48:01,372 INFO L421 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: false [2018-11-18 13:48:01,372 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point L26-1(lines 26 35) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point L26-3(lines 26 35) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L421 ceAbstractionStarter]: At program point L26-4(lines 26 35) the Hoare annotation is: (and (= 0 main_~n~0) (= main_~x~0 0)) [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point L26-5(lines 26 35) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-11-18 13:48:01,373 INFO L425 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-11-18 13:48:01,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:48:01 BoogieIcfgContainer [2018-11-18 13:48:01,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:48:01,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:48:01,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:48:01,390 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:48:01,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:00" (3/4) ... [2018-11-18 13:48:01,394 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:48:01,398 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure elem_exists [2018-11-18 13:48:01,398 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:48:01,398 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure insert [2018-11-18 13:48:01,398 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:48:01,398 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 13:48:01,402 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-11-18 13:48:01,403 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-18 13:48:01,403 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:48:01,422 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (i == 0 && size == 0) || !(\old(size) == 0) [2018-11-18 13:48:01,444 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_40a3a421-f025-4fb5-8a69-c323938320e0/bin-2019/utaipan/witness.graphml [2018-11-18 13:48:01,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:48:01,445 INFO L168 Benchmark]: Toolchain (without parser) took 1312.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 961.3 MB in the beginning and 1.0 GB in the end (delta: -79.5 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:01,447 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:48:01,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 945.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:01,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.38 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:48:01,447 INFO L168 Benchmark]: Boogie Preprocessor took 63.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -203.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:01,447 INFO L168 Benchmark]: RCFGBuilder took 254.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:01,448 INFO L168 Benchmark]: TraceAbstraction took 751.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.8 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:01,448 INFO L168 Benchmark]: Witness Printer took 54.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:01,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.13 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 945.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.38 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -203.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 254.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 751.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.8 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. * Witness Printer took 54.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 == n && x == 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (i == 0 && size == 0) || !(\old(size) == 0) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 == n && x == 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 == n && x == 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: n == 0 && x == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 63 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 34 SDslu, 229 SDs, 0 SdLazy, 54 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=2, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 36 PreInvPairs, 42 NumberOfFragments, 61 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 4406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...