./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c --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_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/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 c5fe2c6077c684b4b50af2f6570d6f5c736d513e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:30:54,296 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:30:54,298 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:30:54,304 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:30:54,304 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:30:54,305 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:30:54,305 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:30:54,306 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:30:54,307 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:30:54,307 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:30:54,308 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:30:54,308 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:30:54,308 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:30:54,309 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:30:54,309 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:30:54,310 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:30:54,310 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:30:54,311 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:30:54,312 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:30:54,312 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:30:54,313 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:30:54,314 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:30:54,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:30:54,315 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:30:54,315 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:30:54,315 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:30:54,316 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:30:54,316 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:30:54,317 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:30:54,317 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:30:54,317 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:30:54,318 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:30:54,318 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:30:54,318 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:30:54,318 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:30:54,319 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:30:54,319 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:30:54,326 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:30:54,326 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:30:54,327 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:30:54,327 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:30:54,327 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:30:54,328 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:30:54,328 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:30:54,328 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:30:54,328 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:30:54,328 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:30:54,328 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:30:54,328 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:30:54,328 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:30:54,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:30:54,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:30:54,329 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:30:54,330 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:30:54,330 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:30:54,330 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:30:54,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:30:54,330 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:30:54,330 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_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/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 -> c5fe2c6077c684b4b50af2f6570d6f5c736d513e [2018-12-09 19:30:54,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:30:54,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:30:54,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:30:54,361 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:30:54,361 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:30:54,361 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c [2018-12-09 19:30:54,398 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/data/34bce268a/89e60bd0433a43ff9628dfc1747e7d53/FLAGe5afb6ddb [2018-12-09 19:30:54,857 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:30:54,857 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/sv-benchmarks/c/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c [2018-12-09 19:30:54,864 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/data/34bce268a/89e60bd0433a43ff9628dfc1747e7d53/FLAGe5afb6ddb [2018-12-09 19:30:54,872 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/data/34bce268a/89e60bd0433a43ff9628dfc1747e7d53 [2018-12-09 19:30:54,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:30:54,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:30:54,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:54,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:30:54,878 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:30:54,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:54" (1/1) ... [2018-12-09 19:30:54,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54724d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:54, skipping insertion in model container [2018-12-09 19:30:54,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:30:54" (1/1) ... [2018-12-09 19:30:54,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:30:54,909 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:30:55,085 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:55,088 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:30:55,168 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:30:55,178 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:30:55,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55 WrapperNode [2018-12-09 19:30:55,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:30:55,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:55,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:30:55,179 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:30:55,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:30:55,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:30:55,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:30:55,198 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:30:55,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... [2018-12-09 19:30:55,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:30:55,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:30:55,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:30:55,233 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:30:55,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/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 [2018-12-09 19:30:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:30:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:30:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 19:30:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 19:30:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:30:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:30:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:30:55,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:30:55,818 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:30:55,818 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:30:55,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:55 BoogieIcfgContainer [2018-12-09 19:30:55,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:30:55,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:30:55,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:30:55,822 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:30:55,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:30:54" (1/3) ... [2018-12-09 19:30:55,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d43cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:55, skipping insertion in model container [2018-12-09 19:30:55,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:30:55" (2/3) ... [2018-12-09 19:30:55,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d43cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:30:55, skipping insertion in model container [2018-12-09 19:30:55,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:55" (3/3) ... [2018-12-09 19:30:55,825 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label24_true-unreach-call_false-termination.c [2018-12-09 19:30:55,833 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:30:55,839 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:30:55,849 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:30:55,871 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:30:55,871 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:30:55,871 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:30:55,871 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:30:55,871 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:30:55,871 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:30:55,871 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:30:55,871 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:30:55,885 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-09 19:30:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-12-09 19:30:55,891 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:30:55,891 INFO L402 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, 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, 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, 1, 1] [2018-12-09 19:30:55,893 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:30:55,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:55,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1228369970, now seen corresponding path program 1 times [2018-12-09 19:30:55,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:30:55,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:55,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:55,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:55,928 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:30:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:30:56,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:30:56,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:30:56,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:30:56,158 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:30:56,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:30:56,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:30:56,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:30:56,171 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2018-12-09 19:30:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:30:56,790 INFO L93 Difference]: Finished difference Result 698 states and 1223 transitions. [2018-12-09 19:30:56,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:30:56,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-12-09 19:30:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:30:56,799 INFO L225 Difference]: With dead ends: 698 [2018-12-09 19:30:56,800 INFO L226 Difference]: Without dead ends: 413 [2018-12-09 19:30:56,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:30:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-12-09 19:30:56,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 278. [2018-12-09 19:30:56,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-09 19:30:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2018-12-09 19:30:56,837 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 104 [2018-12-09 19:30:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:30:56,838 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2018-12-09 19:30:56,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:30:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2018-12-09 19:30:56,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-12-09 19:30:56,841 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:30:56,841 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 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, 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] [2018-12-09 19:30:56,841 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:30:56,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:56,841 INFO L82 PathProgramCache]: Analyzing trace with hash -514916763, now seen corresponding path program 1 times [2018-12-09 19:30:56,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:30:56,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:56,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:56,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:56,843 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:30:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:30:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:30:56,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:30:56,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:30:56,934 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:30:56,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:30:56,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:30:56,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:30:56,936 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2018-12-09 19:30:57,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:30:57,307 INFO L93 Difference]: Finished difference Result 840 states and 1243 transitions. [2018-12-09 19:30:57,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:30:57,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-12-09 19:30:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:30:57,310 INFO L225 Difference]: With dead ends: 840 [2018-12-09 19:30:57,310 INFO L226 Difference]: Without dead ends: 568 [2018-12-09 19:30:57,311 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:30:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2018-12-09 19:30:57,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 556. [2018-12-09 19:30:57,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-12-09 19:30:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 799 transitions. [2018-12-09 19:30:57,332 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 799 transitions. Word has length 114 [2018-12-09 19:30:57,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:30:57,332 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 799 transitions. [2018-12-09 19:30:57,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:30:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 799 transitions. [2018-12-09 19:30:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-09 19:30:57,334 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:30:57,334 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2018-12-09 19:30:57,335 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:30:57,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:57,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1039511129, now seen corresponding path program 1 times [2018-12-09 19:30:57,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:30:57,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:57,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:57,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:57,336 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:30:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:30:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:30:57,422 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:30:57,422 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 19:30:57,423 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-12-09 19:30:57,424 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-09 19:30:57,449 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 19:30:57,449 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 19:30:57,773 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 19:30:57,775 INFO L272 AbstractInterpreter]: Visited 108 different actions 208 times. Merged at 3 different actions 3 times. Never widened. Performed 2967 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2967 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-09 19:30:57,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:57,786 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 19:30:57,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 19:30:57,786 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 19:30:57,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:57,795 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 19:30:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:30:57,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:30:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:30:57,885 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 19:30:57,922 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:30:57,946 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 19:30:57,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-12-09 19:30:57,947 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:30:57,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:30:57,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:30:57,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:30:57,948 INFO L87 Difference]: Start difference. First operand 556 states and 799 transitions. Second operand 3 states. [2018-12-09 19:30:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:30:58,268 INFO L93 Difference]: Finished difference Result 1376 states and 1995 transitions. [2018-12-09 19:30:58,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:30:58,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2018-12-09 19:30:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:30:58,272 INFO L225 Difference]: With dead ends: 1376 [2018-12-09 19:30:58,272 INFO L226 Difference]: Without dead ends: 826 [2018-12-09 19:30:58,273 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:30:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2018-12-09 19:30:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2018-12-09 19:30:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2018-12-09 19:30:58,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1153 transitions. [2018-12-09 19:30:58,290 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1153 transitions. Word has length 115 [2018-12-09 19:30:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:30:58,290 INFO L480 AbstractCegarLoop]: Abstraction has 826 states and 1153 transitions. [2018-12-09 19:30:58,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:30:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1153 transitions. [2018-12-09 19:30:58,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-12-09 19:30:58,292 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:30:58,292 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2018-12-09 19:30:58,293 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:30:58,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:30:58,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2018478817, now seen corresponding path program 1 times [2018-12-09 19:30:58,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:30:58,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:58,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:30:58,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:30:58,294 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:30:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:30:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:30:58,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:30:58,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:30:58,357 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:30:58,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:30:58,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:30:58,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:30:58,357 INFO L87 Difference]: Start difference. First operand 826 states and 1153 transitions. Second operand 4 states. [2018-12-09 19:30:58,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:30:58,814 INFO L93 Difference]: Finished difference Result 2321 states and 3296 transitions. [2018-12-09 19:30:58,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:30:58,814 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2018-12-09 19:30:58,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:30:58,815 INFO L225 Difference]: With dead ends: 2321 [2018-12-09 19:30:58,815 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:30:58,817 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:30:58,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:30:58,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:30:58,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:30:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:30:58,818 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2018-12-09 19:30:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:30:58,818 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:30:58,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:30:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:30:58,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:30:58,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:30:58,949 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:30:58,949 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~a16~0)| ~a16~0) [2018-12-09 19:30:58,949 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-09 19:30:58,950 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,951 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-09 19:30:58,952 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-09 19:30:58,953 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-09 19:30:58,954 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,955 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,956 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-09 19:30:58,957 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-09 19:30:58,958 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 470) no Hoare annotation was computed. [2018-12-09 19:30:58,959 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= |old(~a16~0)| ~a16~0))) (and (or (and .cse0 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0)))) (and (= |old(~a7~0)| |old(~a20~0)|) (= 1 |old(~a20~0)|))) (or (and (= 13 ~a8~0) .cse0) (not (= 13 |old(~a8~0)|))) (or (= 6 |old(~a16~0)|) (and .cse0 (not (= ~a8~0 15))) (= 15 |old(~a8~0)|)))) [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,960 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-09 19:30:58,961 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-09 19:30:58,962 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-09 19:30:58,963 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-09 19:30:58,964 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-09 19:30:58,965 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-09 19:30:58,965 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-09 19:30:58,965 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-09 19:30:58,965 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-09 19:30:58,965 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:30:58,965 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a16~0 6)) (not (= ~a20~0 ~a7~0))) [2018-12-09 19:30:58,965 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:30:58,965 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:30:58,965 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (= |old(~a7~0)| |old(~a20~0)|) (and (= |old(~a16~0)| ~a16~0) (not (= ~a20~0 ~a7~0)))) [2018-12-09 19:30:58,965 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-09 19:30:58,966 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= 1 ~a20~0)) (= 13 ~a8~0) (= |old(~a7~0)| |old(~a20~0)|) (and (not (= ~a16~0 6)) (not (= ~a8~0 15))) (not (= ~a20~0 ~a7~0))) [2018-12-09 19:30:58,966 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-09 19:30:58,966 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-09 19:30:58,966 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= 1 ~a20~0)) (= 13 ~a8~0) (= |old(~a7~0)| |old(~a20~0)|) (and (not (= ~a16~0 6)) (not (= ~a8~0 15))) (not (= ~a20~0 ~a7~0))) [2018-12-09 19:30:58,966 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-09 19:30:58,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:30:58 BoogieIcfgContainer [2018-12-09 19:30:58,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:30:58,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:30:58,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:30:58,978 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:30:58,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:30:55" (3/4) ... [2018-12-09 19:30:58,981 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:30:58,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:30:58,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 19:30:58,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:30:58,992 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 19:30:58,993 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 19:30:59,011 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((6 == \old(a16) || !(1 == a20)) || 13 == a8) || \old(a7) == \old(a20)) || (!(a16 == 6) && !(a8 == 15))) || !(a20 == a7) [2018-12-09 19:30:59,064 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5a3b1e9f-e9cb-4d9d-bc8c-043dd5e0b152/bin-2019/utaipan/witness.graphml [2018-12-09 19:30:59,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:30:59,064 INFO L168 Benchmark]: Toolchain (without parser) took 4189.70 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.2 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -59.3 MB). Peak memory consumption was 246.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:59,065 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:30:59,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:59,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.19 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:59,066 INFO L168 Benchmark]: Boogie Preprocessor took 34.50 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:59,066 INFO L168 Benchmark]: RCFGBuilder took 585.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.5 MB in the end (delta: 116.2 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:59,066 INFO L168 Benchmark]: TraceAbstraction took 3158.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 988.5 MB in the beginning and 1.0 GB in the end (delta: -32.7 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:59,066 INFO L168 Benchmark]: Witness Printer took 85.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:30:59,067 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.19 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.50 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 585.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.5 MB in the end (delta: 116.2 MB). Peak memory consumption was 116.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3158.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 988.5 MB in the beginning and 1.0 GB in the end (delta: -32.7 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. * Witness Printer took 85.98 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 470]: 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: 583]: Loop Invariant Derived loop invariant: ((((6 == \old(a16) || !(1 == a20)) || 13 == a8) || \old(a7) == \old(a20)) || (!(a16 == 6) && !(a8 == 15))) || !(a20 == a7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 496 SDtfs, 949 SDslu, 114 SDs, 0 SdLazy, 2132 SolverSat, 512 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 259 GetRequests, 236 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=826occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 147 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 30 PreInvPairs, 52 NumberOfFragments, 131 HoareAnnotationTreeSize, 30 FomulaSimplifications, 572 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 320 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 676 ConstructedInterpolants, 0 QuantifiedInterpolants, 279922 SizeOfPredicates, 2 NumberOfNonLiveVariables, 351 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 38/43 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...